Beginner's Guide to Ice Baths
If this is your first time using an ice bath, here are a few tips to help you get started:
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For a while, until you get used to it, set the temperature to 10 degrees.
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Before getting into the ice bath, take a warm shower.
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A key requirement is to have peace and quiet in your space, with no one talking to you, and avoid hearing conversations, as this can distract your mind.
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Get in quickly without thinking, within 4-5 seconds.
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Do not submerge your arms past your wrists first.
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Play some music, it will help the time pass faster.
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Once you’re inside, stay still and remain motionless.
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The first 10-20 seconds your body adjusts to the temperature and accepts the cold, so after 20 seconds, you won’t feel cold anymore, and you'll be fine.
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Once you’re in, breathe slowly and deeply, both in and out. Don’t let yourself pant or breathe quickly. Try (it’s easy) to breathe very slowly for the first 30-40 seconds.
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Start by sitting in for 1-3 minutes. Over time, as you get used to it, gradually increase the duration up to 5 minutes. Once you're comfortable with that, you can start lowering the temperature during future sessions.
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Basic step: Once you finish your cold therapy session, it's recommended to stay standing and frozen outside the ice bath for 5-10 minutes. After this time, take a warm shower to bring your body temperature back to 100%.
*TIP: If it's summer and it's very hot outside, try skipping the warm shower to restore your body temperature, and you can stay in the summer heat for 4-6 hours without getting hot.
Enjoy your recovery session!
AirTub User Manual - How to install
User Hygiene Guidelines
Before you begin the installation, please take note of the following:
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The Airtub should always be used after a proper shower with soap, thorough rinsing, and only when your body is completely clean.
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If users enter the Airtub without proper hygiene, the water lifespan will be significantly reduced compared to the expected duration specified in the product guidelines at the time of purchase.
Handling Instructions
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Before opening the boxes, please be aware that the chiller must remain upright at all times. The chiller should never be laid on its side or turned upside down
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When removing the chiller from its box, ensure that it is handled carefully and kept in an upright position to avoid potential damage.
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If the chiller is accidentally turned upside down, it must be placed upright and remain in that position for 24 hours before being operated. This allows the internal components to stabilize and ensures proper functionality.
1
INTRODUCTION
Welcome to your AirTub, a portable and efficient cold therapy solution designed to enhance recovery and wellness. The AirTub combines an inflatable tub made from durable, double-wall drop-stitch material with a powerful external chiller, allowing you to enjoy cold therapy wherever you choose. With its ease of setup and versatile use, the AirTub is perfect for home use or on-the-go recovery. This manual will guide you through safe setup, operation, and maintenance to ensure you get the most out of your AirTub experience.
Attention
Once you have completed the installation according to the assembly instructions and connected all the components, the system is ready for operation — all that remains is to fill it with water.
Before filling the AirTub with water, make sure that its final placement is correct and that you have easy access to the bottom valve of the Tub (on the back side). Once filled with water, it cannot be easily moved, and to reposition it you would need to drain it manually.
Therefore, first assemble and connect all the components properly, ensure that its position is correct and convenient, and then fill it with water.
2
SAFETY INFORMATION
Water Quality – Important Notice
Using water of poor or unsuitable quality in any system purchased from our company (such as AirTub, filters, pumps, chillers, UV or Ozone systems) may cause serious damage or even complete failure of the equipment.
In areas with hard water (high mineral/salt content), operating the system without prior testing or pre-treatment may lead to blockages, corrosion, or functional failure in critical components.
Instructions:
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If you are unsure about your water quality, we strongly recommend consulting a water technician or specialist to test the salt/mineral levels and other quality parameters.
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If the salt levels exceed the acceptable limits, you must use appropriate chemical products or a water pre-treatment system to bring the water to safe operating levels.
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The water used in any of our systems must be clean, drinkable, and compliant with the European Union’s drinking water quality standards.
⚠️ The warranty does not cover any damage or malfunction caused by the use of unsuitable or poor-quality water in any part of the system.
AirTub Placement Instructions
The location where your AirTub will be installed and operated must meet specific criteria:
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The ambient temperature (indoors or outdoors) must not exceed 35°C. Extended exposure to high temperatures may damage the water chiller, which relies on airflow for cooling.
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The AirTub must always be placed in a shaded area. Direct sunlight will prevent the water from cooling, and the tank may act like a solar heater, potentially damaging the cooling system due to the opposite effect of heating.
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If placed indoors, the room must be well ventilated.
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If placed on a balcony or in a garden, it must be fully shaded at all times.
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Failure to follow these instructions may result in equipment damage due to misuse and will void the warranty.
Electrical Safety
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Warning: Do not plug in or operate the IceBath unless the electrical panel in your location is equipped with a Residual Current Device (RCD) – also known as a Ground Fault Circuit Interrupter (GFCI) – and proper grounding. By law and for your own safety, all homes and facilities must have RCD/GFCI protection installed in their main electrical panels. If you are unsure what this means, or if your panel does not include this protection, do not connect your IceBath. Instead, consult a licensed electrician to install the necessary safety device.
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Voltage Stability – Important Notice
If your area has a history of voltage fluctuations from the electricity provider, we recommend connecting the IceBath to the socket through a voltage stabilizer, a surge-protected power strip, or a UPS (Uninterruptible Power Supply). For more information on the appropriate solution, please consult a qualified electrician in your area.
⚠️ In case any damage occurs to the IceBath due to voltage fluctuations, it will not be covered by the warranty. -
Never touch power outlets or plugs with wet hands.
General Safety Instructions
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Never operate the system without water. Make sure the tub and water circulation system are fully filled before turning on the chiller.
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Never operate the chiller without connecting the water pump. Make sure the pump power cable is plugged in before starting the chiller. If the pump cable becomes unplugged during operation, immediately turn off the chiller’s main power switch.
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Do not operate the system with closed valves. Ensure there is active water circulation and that the valves are open before using the system.
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Do not place the chiller in direct sunlight or in high-temperature areas (e.g. room temperature above 35°C or small, unventilated spaces), as this can cause slow cooling or equipment failure.
Chiller Safety
Keep the chiller away from direct contact with water and ensure proper ventilation to avoid overheating.
The chiller is not waterproof. It can be used outdoors but must always be placed under a roof, canopy, or balcony.
Place the tub on a flat surface, away from sharp objects. Avoid over-inflation and regularly check for damage.
Supervision
Always supervise children and pets around the tub.
3
LEGAL DISCLAIMER
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Our ice baths are designed for wellness and recovery purposes but do not serve as a substitute for medical treatment.
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We do not assume any responsibility for potential medical issues that may arise from the use of our products.
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Users of all ages – including children, pregnant individuals, the elderly, and athletes – must consult with their physician prior to use, to ensure that cold therapy is safe and appropriate for their individual health condition.
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By using the product, users accept full responsibility for any health risks associated with its use.
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Furthermore, we assume no responsibility for injuries or accidents related to electrical issues in cases where the necessary safety installation requirements have not been followed, as explicitly stated above.
The operation of the unit requires that the space includes proper electrical safety measures, such as a residual current device (RCD), a certified electrical panel, and inspection by a licensed electrician, in accordance with local laws and technical safety standards.
4
COMPONENTS OVERVIEW
Filter, Pump, Pipes
Parts
5
YOU WILL NEED: POWER STRIPS (NOT INCLUDED)
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If you purchased the AirTub only, (without UV or Ozone), you will only need a single power outlet for the entire system at your place.
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If you purchased a UV or an Ozone system along with your AirTub, you will need a power strip with two outlets. This is because both the AirTub and the UV or Ozone need to be connected to the same power strip, allowing you to turn them off together if needed.
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If you purchased both a UV and an Ozone system along with your AirTub, you will need a power strip with three outlets. This is because the AirTub, UV, and Ozone all need to be connected to the same power strip, allowing you to turn them off together if needed.
YOU WILL NEED: WATER HOSE (NOT INCLUDED)
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You will need any hose that is long enough to reach from a water tap to the airtub in order to fill it. Be sure to choose the location carefully beforehand, as once it is filled, it becomes very heavy and cannot be moved.
💡Smart Control APP
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If you have also purchased the Smart Control system we provide for the airtubs, you must plug the Smart Control into the power outlet and then connect the airtub to the Smart Control.
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If you are also using a UV or ozone system, meaning you're using a power strip, you should connect the power strip to the Smart Control.
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Important: Do not connect only the airtub or only the UV or ozone system to the Smart Control. The entire system must be connected through the Smart Control.
6
SETUP & INSTALLATION
🔹 Before You Start Installation
Before starting the installation of your system, it’s important to understand two key points that must be checked regularly on your ice bath. These are the only reasons that could potentially cause damage to the system if neglected:
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Water Filter Check
Check the water filter every week. If it’s dirty, clean it thoroughly or replace it. If the filter becomes clogged with dirt and is not changed in time, there’s a serious risk of damaging the water pump or other critical components.
➤ As a reference: for systems used by 1–2 people daily, the filter should be replaced every 30–40 days at most.
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Water Flow from the Top Outlet of the Tub
The top outlet (the top hole of the tub) should always have a constant water flow — meaning water must be blowing into the tub. You can easily check this by placing your finger on the outlet and feeling the flow.
📌 Detailed instructions on how to check and act on these issues are provided later in this manual.
STEP 1: Location and Preparation
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If you choose to set up the ice bath indoors, such as in the living room, we recommend placing 1-2 thick towels or a small blanket underneath the tub, shaped into a circle (matching the size of the tub). This is because, when using the ice bath at very low temperatures (below 8-10°C, e.g., 3°C), the warmth of the indoor environment might cause moisture to form underneath the tub, which over time could damage your flooring (e.g., if it’s wooden). By placing the recommended items underneath, you create an insulating layer between the tub and the floor, preventing moisture buildup.
Important note: The towels are not meant to absorb the moisture but to prevent its formation altogether. -
Choose a flat, clean surface for the Tub, ensuring the area is free of sharp objects.
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Place the chiller on a flat surface, away from water sources and protected from rain or excessive moisture
STEP 2: Unboxing and Setup
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Open all the boxes and take out both the inflatable tub and the chiller
The chiller should never be laid on its side or turned upside down. When removing the chiller from its box, ensure that it is handled carefully and kept in an upright position to avoid potential damage.
If the chiller is accidentally turned upside down, it must be placed upright and remain in that position for 24 hours before being operated. This allows the internal components to stabilize and ensures proper functionality. -
Attach the filter unit to the left side of the chiller. There are small notches on the metal base of the filter that snap into place on the chiller
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Use the air pump to fully inflate the tub until it is stable and firm. Fill the system to a pressure of 10 PSI (as indicated on the pump gauge)
STEP 3: Tub Placement Guide
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After inflating the Tub, place it in the desired location. Plan carefully where to position it beforehand, as once filled with water, it becomes too heavy to move. Ensure that the orientation of the water inlet and outlet hoses from the Tub is not against the wall. The connection points of the Tub where the hoses attach should be slightly angled (as shown in the reference photo) and facing the direction where you will place the chiller. This positioning prevents the water hoses from bending or creating sharp angles. Therefore, make sure the Tub is correctly positioned before starting to fill it with water.
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Make sure the back of the chiller has enough space for proper ventilation. Airflow must be unrestricted.
STEP 4: Upon the chiller
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First, remove the two caps on top of the chiller (Image 1). By removing them, 2 rubber rings will remain from each cap you take off (Image 2).
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After removing the two caps, place one rubber ring back onto each socket as shown in the image 3 & 4 and then tighten these two components firmly by hand (Image 5). Do not use any tools—tighten them only with your hand.
STEP 5: On the Airtub
Take these two valves and screw them tightly onto the Airtub, into the two holes (one on top and one on the bottom). Tighten them by hand on, do not use any tools.
STEP 6: Pipe Connections
Connect C to the bottom slot of the AirTub (on the valve), use only your hand
Connect D to the inlet of the chiller.
Connect A to the outlet of the chiller.
Connect B to the top slot of the AirTub (on the valve).
STEP 7: Turn Off all the valves
At this stage, make sure that all the valves in the system are turned off, because in the next steps, you will be filling the AirTub with water.
There are 3 valves to turn off:
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The 2 valves on the AirTub.
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The 1 black valve on the filter.
EXTRAS (UV, OZONE)
Skip this step If you haven't purchased UV or Ozone system.
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If you have any of them (UV or OZONE, please click on the button to proceed with their installation.
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After you finish with these installations, come back to this page and continue with the next steps below
*Note: The UV and the Ozone installation should only be done after completing the previous setup steps.
STEP 8: Pump's cable
Connect the pump cable to the port on the back of the chiller (the main switch should still be OFF).
STEP 9: Main power cable
Connect the power cable and make sure the on off switch at this step is turned OFF. Don't turn on the chiller yet
STEP 10: Now it's time to fill the Tub with water
Use a hose connected to a water tap in your space to fill the AirTub. Fill it until the water level is 2–3 fingers above the marked maximum level line (inside the tub). The upper hole of the AirTub must be submerged in water by 2–3 fingers. Do not turn on the system until the AirTub is fully filled with water. The pump and chiller must never operate without water.
STEP 11: SYSTEM AIR RELEASE
Once the AirTub is filled with water, the filter needs to be purged of air.
To perform the air release, the entire system must be turned off (main switch on OFF).
A. Both valves on the AirTub must be open.
B. Open the small valve located on top of the filter. You will see the filter filling with water. After 2–3–4 seconds, water will begin to come out of the small valve — the moment it does, immediately close the valve. The air release is now complete. You can now turn the system back on; it’s ready for operation.
*Sometimes, air may enter the filter, causing the water level inside to drop below the halfway point. Check it regularly. If this happens, simply follow this step every time you see air in the filter.
STEP 12: At the back of the chiller, turn the switch to the ON position.
Method of use:
1. First, the water pump starts — this means the water flow has just begun. Place your hand inside the AirTub, directly in front of the upper hole; you should feel water “blowing” out. Also, check for any leaks at all connection points now that the system is running. If you detect any leakage, immediately turn the system OFF, close the valves, and re-tighten the fittings securely.
2. The chiller will begin operating 3 minutes after startup. During its operation, you’ll see the snowflake icon appear in the top left corner of the screen and the fan icon in the top right corner.
STEP 13: Set the Thermostat Settings
Set your desired water temperature:
Press S key once and then adjust the preferred target temperature with arrows ▲▼
⚠️ When selecting the desired temperature, pay close attention to decimals.
The target temperature does not use decimals. For example, nine degrees should be set as 9 (not 9.0) and ten degrees as 10 (not 10.0). Entering 9.0 would actually be read as 90, and 10.0 would be read as 100, not as 9 or 10.
*DO NOT SET THE DESIRED TEMPERATURE BELOW 3°C, (this model cannot work below 3°C, damage can be done)
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OTHER SETTINGS - We recommend not changing any settings from P0 to P6.
Press S for 5 seconds.
Use the ▲▼ buttons to navigate from P0 to P6.
Press the S button again to enter a "P" setting, and use the ▲▼ arrows to change the value.
*Attention: When setting the desired water temperature from the thermostat screen, the setting can only be done using whole numbers (without decimal points).
For example, you can set the temperature to 9°C, 10°C, 15°C, etc., but not to 10.0°C or 9.5°C.
However, the current water temperature is displayed with decimal precision (e.g., 10.2°C, 9.7°C), so you can have a more accurate understanding of the system’s thermal status
P0 = C
(Select cooling or heating mode. This model is for cooling.)
P1 = 3.0
(Temperature difference. When the chiller reaches the desired temperature, this setting determines after how many degrees it will start cooling again.)
Example: If P1 is set to 3 and the desired temperature is 7°C, the cooling will stop when the water reaches 7°C and restart when the temperature rises to 10°C.
P2 = 110
(High-temperature warning for the chiller box. If the temperature exceeds this value, the chiller will not operate.)
P3 = -50
(Low water temperature warning.)
P4 = -2
P5 = 3
(Protection delay. This means that after starting the chiller, the machine will begin operating after 3 minutes, protecting it from damage due to rapid power fluctuations. If set to 5, it will start operating 5 minutes after activation.)
P6 = C
(You can select Celsius (C) or Fahrenheit (F) based on your preference.)
At the end of the installation, you may notice some spare components are left. These are included for future use or in case replacements are needed.
8
FILTER REPLACEMENT & WATER DRAINAGE
After some time of operation, the filter will accumulate dirt, so you will need to replace the internal filter or wash it. To replace the filter without spilling the water inside, you can first drain the water from the filter by following the procedure below.
A. Draining water from the filter
When the system is running normally:
Step 1: Close the lower valve of the AirTub and immediately open the small valve on top of the filter. You will see air entering the filter and water draining completely from it.
Step 2: Once the water level in the filter has fully dropped, close the upper valve of the AirTub and turn off the main power switch on the back of the chiller.
The water inside the filter is now drained and it’s ready for replacement.
B. Opening the filter cap and replacing the filter
Step 1: Unscrew the cap of the filter.
Step 2: Remove and replace the internal filter cartridge.
Step 3: Put the filter back in place and screw the cap back on.
Step 4: Open the two water valves of the AirTub (top and bottom).
Step 5: Bleed the air from the filter (remove the air by opening the small black valve at the top of the filter).
Step 6: Finally, turn on the main power switch at the back of the chiller (do not turn the chiller on until you have bled the air).
📌Inside the chiller package, we have included a replacement water filter.
This is meant to cover your first filter change, so your system is never left without filtration while you purchase a new one from us.
We strongly recommend purchasing filters directly from us, as they are specifically designed to match the exact specifications of your AirTub. If you buy a filter from another source and it is even slightly smaller in size or does not fit perfectly in the system, dirt will pass into the water pump, which may eventually cause it to burn out. In such a case, if debris is found inside the pump, the warranty will not be valid, which is why we advise always using our original filters.
Filter Specifications:
Length: 5 inches / 12.8 cm
Filtration: 20 micron
Draining the water out
Step 1: Set the system to OFF and turn off all the valves OFF
Step 2: At the bottom valve of the Tub, remove the hose from the valve. (Do NOT unscrew the valve from the Tub, only the hose).
Step 3: Open ONLY the bottom valve of the Tub and let the water drain out.
When, at the end of draining, there is still some water left and you want to turn the AirTub upside down to let it drain completely, be very careful not to tilt it towards the side where the two valves are located. If the weight of the tub presses on the valves, there is a high risk they will break. For this reason, always turn it over from the opposite side.
*If you want to drain the water further away from the tub, for example, to a balcony, we have already provided you with a quick connector (see image). You can attach a hose from your home to this connector (if you don't have one, purchase a 12mm garden hose) and connect it to the bottom valve of the AirTub as an extension.
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OPERATION INSTRUCTIONS
🔺 Priority No1 – Filter Check
Please carefully check the image below. The filter must be inspected and replaced as soon as it reaches level 2 (slightly yellowish). If you allow it to progress to stage 3 or 4, the excessive buildup of dirt can cause serious damage to the system.
The filter must be checked regularly to ensure it is not too dirty. If you notice a significant build-up of debris or residues, it should be immediately either replaced or rinsed with clean water. Regular maintenance of the filter is crucial.
⚠️ Warranty does not cover damage caused by using an excessively dirty filter, as this is considered a result of misuse.
For proper and safe system operation:
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✅ Always follow the user instructions.
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✅ Check the filter frequently.
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✅ Replace it promptly once it reaches stage 2.
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✅ Do not allow it to reach stage 3 or 4.
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✅ Enter the tub only when clean to reduce water contamination.
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Chiller Operation
When you activate the chiller for the first time, it takes time for the water to reach the desired temperature. This can take several hours (4-10) depending on environmental conditions and the target temperature.
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Entering the AirTub
Make sure the AirTub temperature is at the desired level. Take a shower before entering to maintain water clarity and hygiene.
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After Use Recommendations
Keep the AirTub filled and the chiller continuously on to maintain efficiency for daily or weekly routines. Close the lid after use to maintain temperature.
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Indoor Use
If you use the AirTub indoors and want to lower the temperature below 8-10°C, you may notice that the filter, exposed to indoor air, starts to sweat due to temperature differences. This is normal because indoor air is warmer. The temperature difference in materials causes condensation. The AirTub and its hoses are insulated to prevent this process, but the pump and filter may still produce moisture.
What can you do?
Cover the entire filter with a towel to prevent direct contact with air, which will stop condensation and sweating. Do the same for the pump.
💧🔁 WATER FILTER – INSTRUCTIONS / AIR & CORRECT OPERATION
The filter must always contain water. During normal operation, the water level should be at least halfway up the filter, ideally to the top. If you notice the water level is very low or empty, perform air bleeding (see Step 11 in the guide).
If after bleeding and a few hours pass the water level drops again well below the middle, it means something hasn’t been installed correctly. In that case, check the following step by step:
Switch the system to OFF and follow all steps below.
1: The lower valve on the AirTub (the one that sends water to the filter) may need to be tightened a bit more. Try turning it a little more by hand — do not use tools. Tighten it just until it no longer turns easily by hand, without applying excessive force.
2: The fitting you attached to this valve (the metal part) might also need slight tightening. Again, only by hand, and do not overtighten.
3: Make sure the filter cap (the clear plastic one) is securely tightened. If needed, tighten it a bit more.
At this stage, perform air bleeding (see Step 11) and restart the system. If after some time the water level in the filter drops again below the middle, continue with the next steps.
Turn the system OFF again and follow the rest.
4: Close both valves of the AirTub and open the filter (unscrew the transparent plastic lid). Replace the current water filter with the replacement one we have provided. Screw the lid back on tightly, only by hand, as far as it goes, without using any tools. Perform air bleeding (see Step 11 of the manual) and restart the system.
If after all that air continues to enter the filter and the water level drops again below halfway, please contact us for further support.
10
Icebath Cleaning & Maintenance
Water Hygiene
The water in your icebath functions like a living organism, as it comes in direct contact with your body. That’s why it requires regular maintenance to stay clean and safe for use.
1. Water Check
You should check the condition of the water at least once a week. If the water changes color, clarity, or smells unpleasant, it most likely needs to be replaced.
2. Based on your cleaning system:
a. Icebath with basic water filter (no UV or Ozon):
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The water should be replaced every 3 to 4 weeks.
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The water filter should be checked weekly:
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If it is filled with dirt, hair, or has become dark, it must be cleaned or replaced.
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A clogged filter restricts water flow, reduces cleaning efficiency, and may lead to pump damage.
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🛑 Important: If the filter is not cleaned or replaced for an extended period and becomes fully blocked, dirt may enter the pump or cause overheating.
In such cases, the warranty does not cover pump damage, as it results from improper maintenance.
b. Icebath with UV or Ozon system:
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Water replacement can be extended to every 2 to 3 months, depending on how often and how cleanly the bath is used.
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It is strongly recommended that you shower thoroughly with soap before entering the icebath.
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The filter maintenance and replacement routine remains exactly the same as above.
3. When you're not using the icebath for a few days
If you don’t use the icebath for 2–3 days or more, the water becomes stagnant, creating ideal conditions for bacteria to form.
👉 In such cases (or generally whenever you’re not using the bath):
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Open the lid, and
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With your hand, stir the water vigorously in a circular motion for 20–30 seconds to create a swirling effect.
This helps with oxygenation and prevents stagnation.
4. If you have Smart Control
If you've purchased the Smart Control system and choose to keep the icebath turned off for several days, keep in mind:
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No water cleaning occurs while the unit is off.
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Water remains completely still and its lifespan is significantly reduced.
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Manual stirring (as described above) becomes even more critical in this case.
5. Airtub Cleaning During Water Changes
Every time you drain the icebath and refill it with fresh water, it is essential to also clean the inside of the Airtub:
🧽 Use a sponge with a little bleach and water to thoroughly disinfect the interior surfaces.
💦 Then, rinse thoroughly with plenty of clean water to remove all bleach residue.
The bleach is necessary to properly sanitize the material of the Airtub and ensure it stays hygienic for the next use.
6. Final Note – Caution:
Do not keep the same water beyond the recommended timeframes. Long-term water use can lead to bacterial growth and increase the risk of contamination, which can negatively affect your health.
Chiller Maintenance (once a year)
Proper maintenance of your chiller is necessary for optimal performance. The main cause of reduced performance is dust accumulation, which blocks proper cooling and ventilation. For this reason, we recommend cleaning your chiller at least once a year using professional air blowing.
If your chiller is outdoors or in a dusty environment, we recommend repeating this procedure every 6 months.
Chiller Cleaning Procedure
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Completely turn off the system.
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Close all valves.
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Detach the filter from the chiller.
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Place the plugs back on the two chiller ports and take it with you.
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Transport the chiller to the cleaning area without tilting or inverting it.
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For cleaning, a strong air blow inside the chiller is required. If you do not have professional air blowing equipment, you can take it to a gas station with a strong air blower. Blow air from all sides, including the back where the fans are located. Make sure to remove all dust without tilting or inverting the unit.
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After cleaning, reconnect the chiller to your system.
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DURING HARSH WINTER
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If you have an airtub or ice bath placed outdoors, keep in mind that during winter, when temperatures drop below freezing (e.g., below 0°C), you must never turn off the machine. If the system is turned off, the water in the pipes could freeze and cause damage. Some customers have mistakenly turned off the machine, thinking that the cold weather outside would cool the water naturally. However, the machine doesn't just cool the water—it also ensures constant water circulation, preventing it from freezing. So, always keep the machine running to maintain water flow and avoid freezing or potential damage to the system. Additionally, if the outdoor temperature drops below -1,-2°C, you’ll need to move the machine indoors until the extreme cold weather passes. The process is simple: close all the valves of the tub, disconnect the hoses, and move the machine to a warm indoor space (you can leave the tub outside with the water, as it won’t be damaged). By following these steps, you can ensure the system remains safe during cold weather conditions.
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TROUBLESHOUTING
Problem: The chiller stops cooling before reaching the desired temperature
Solution: The system includes an overheating protection mechanism. If the room temperature is too high or the chiller is placed in a corner or too close to a wall, hot air from the ventilation can get trapped, causing the unit to overheat.
Make sure the back of the chiller has enough space for proper ventilation. Airflow must be unrestricted.
The system will temporarily stop for safety reasons and automatically restart once the temperature drops to a safe level. If this happens frequently, move the unit to a cooler or more open area.
Problem: Water is not cooling
Solution: The only reason for water not cooling is lack of circulation. If there’s no circulation, something is blocking the flow. Most common reasons:
• very dirty filter, or
• something clogged the water inlet (lower hose inside the AirTub).
How to check:
Place your hand inside the tub in front of the top hole (water return) and check for flow.
❌ No flow → turn off the system immediately and contact us.
✅ Flow exists → still turn off the system and contact us.
Important:
Always keep the filter clean. Wash it regularly or replace it to ensure proper circulation.
Problem: The pump makes a strange fluctuating noise
Solution: Air has entered the filter, usually from sudden movement in the water. It’s normal and easy to fix. Bleed the filter – see STEP 11.
Problem: I set it to 5°C, but when it gets there, it stops and then the temperature rises.
Solution: That’s how the chiller works. It restarts 3°C above the target.
Example: Set to 7°C → stops at 7, restarts at 10°C.
Problem: Loud or unstable pump noise
Solution: The filter needs bleeding, especially after vacuuming.
Problem: Water is not circulating enough or at all
Solution 1: The filter must be on the ground, not elevated.
Solution 2: The filter must be at least half full of water.
Solution 3: Check for kinked hoses.
Solution 4: Make sure the pump is connected and running.
Problem: The temperature doesn’t reach the set level
Solution 1: Verify screen settings and check for dirt in filter or pipes.
Solution 2: Check for bent hoses.
Solution 3: Make sure the cooling symbol appears on the thermostat.
Solution 4: If the filter is clogged, clean or replace it.
Problem: Leakage at connections
Solution: Tighten all connections.
13
WARRANTY
AirTub Warranty and Exclusions
The AirTub is a portable cryotherapy device consisting of an inflatable tub made from durable double-layer drop-stitch material and an external chiller. It is designed for easy transport and setup, offering a simple yet effective solution for personal cold therapy. Both components are covered by a 1-year warranty, with specific exclusions to ensure optimal performance and long-term durability.
Warranty Duration:
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Inflatable Tub & External Chiller: 1-year warranty covering defects in materials, construction, mechanical or electrical components, and cooling performance.
Any damage caused by improper maintenance or misuse is excluded from the warranty.
Exclusions – Inflatable Tub:
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Overinflation beyond recommended pressure
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Exposure to sharp objects
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Use on uneven or abrasive surfaces
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Exposure to extreme temperatures
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Use of harsh chemical cleaners
Exclusions – External Chiller:
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Operation in enclosed or poorly ventilated areas causing overheating
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Incorrect voltage supply
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Malfunction due to exposure to high humidity
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Failure to clean filters as recommended
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Blockage of internal airflow
Non-Commercial Use:
This warranty is valid only for personal, non-commercial use.