To clean an air cooler, unplug it after use, empty the water tank, rinse the tank with lukewarm water and a little mild soap, and let everything dry thoroughly. It is best to change the water daily. This prevents stagnant water from developing an unpleasant smell or dirt from building up inside the device. Always follow the instructions for your specific model, as the parts vary from one air cooler to another.
Direct answer: unplug it, empty the tank, rinse it with lukewarm water and mild soap, let everything dry, and fill it with fresh water before the next use.
Why is it important to clean an air cooler?
An air cooler uses water, and stagnant water is a good place for dirt, limescale, and even algae or bacteria to grow. You may notice this as a musty smell or a slimy layer in the tank. The airflow passes over the water, so a clean tank helps keep the air fresh. For more information on how cooling works, read what is an air cooler and how does it work?.
How to clean an air cooler step by step
Turn off the device and unplug it or remove the charging cable. Remove the water tank and empty it. Rinse the tank with lukewarm water and a little mild soap, using a soft brush or cloth to clean corners and edges, and rinse thoroughly. Do not use harsh cleaning products, and never immerse the device itself or its electrical components in water. Wipe the outside with a slightly damp cloth and let everything air dry completely before reassembling.
How often should you clean it and change the water?
| What | How often | Why |
|---|---|---|
| Change the water | Daily when in use | Prevents stagnant water and odours |
| Rinse the tank | Every few days to weekly | Prevents dirt and limescale build-up |
| Thorough cleaning | At the end of the season | Keeps the device hygienic when stored |
| Wipe the outside | As needed | Removes dust |
These are general guidelines. Check your model's instructions for specific directions. Limescale may build up in hard water; if so, change the water more often and dry the tank.
Storing an air cooler after the season
Only put the air cooler away when the tank is completely empty and dry. Store it in a dry place, preferably in its original packaging or covered to keep out dust. For a cordless model, charge the battery occasionally when you do not use it for an extended period, according to the instructions. If you have questions about the amount of water, see how much water does an air cooler use and how often do you refill it?.
Air cooler no longer blowing cold? Check this first
If your air cooler is not cooling as well as before, there may be dirt or limescale in the system, or the water may have become too warm. All possible causes are explained in why is my air cooler not blowing cold?. The cooling effect is also reduced in humid weather; see does an air cooler work in high humidity?.
Dynter SM211: cordless air cooler with water tank
All information comes from the product page.
Product: Dynter AirFlow Air Cooler SM211 (black or grey)
Cooling: hydro-cool technology, water reservoir refillable with water and/or ice
Controls: three adjustable speeds, soft LED night light
Battery: 2000 mAh, 3 to 4 hours of use after charging via USB-C, according to the product page
Dimensions and weight: 16.5 x 16.5 x 17 cm, 880 grams
Contents: air cooler, USB-C charging cable, water tank, instructions
View Dynter air coolers
Discover the SM211 in black, the SM211 in grey, or the entire collection of air conditioners and fans.
Frequently asked questions
Should I change the water in an air cooler every day?
If you use it daily, it is best to do so. Stagnant water can develop an unpleasant smell and attract dirt.
Can I use cleaning vinegar?
This depends on the model and material. Check the instructions. Mild soapy water is usually the safest choice.
Can I put the air cooler under the tap?
Only the removable water tank, if the instructions allow it. Always keep the device itself and its electronics dry.
What should I do if the air cooler smells musty?
Empty the tank, clean it thoroughly, let everything dry, and use fresh water. If the smell persists, changing the water more often may help.
How do I store an air cooler in winter?
Empty and dry the tank completely, store the device in a dry, dust-free place, and charge the battery according to the instructions.