• 05/12/2021
  • Products (Blog)
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We show you three ways towards a clean air conditioner

With these LIQUI MOLY products you avoid unpleasant odors from the ventilation


If it is not just a cool breeze rolling through your car's interior, but also an unpleasant odor, then that's a sign that the air conditioner has been beset by bacteria and mold. This doesn't just stink, but can cause allergies.

There are three ways by LIQUI MOLY to help with this. The first method is the most affordable: The new LIQUI MOLY Klima Refresh. The spray is a deodorant for cars that every driver can use themselves. The self-emptying can is set in the footwell and the air conditioner switched on. The active substances spread in the ventilation and free the air conditioner from unpleasant odors.

It’s easy to use: run the engine, switch on the air conditioning, set to circulating air, close all windows, place the can in the footwell, activate it and then leave the vehicle. The can empties slowly and the running ventilation distributes the spray mist in the ventilation ducts, ensuring it gets to the vaporiser of the air conditioning system. Highly effective surfactants clean the vaporiser by loosening the dirt film and draining it off with the condensation water. In this way, they tackle the odour problem at its source. The application is complete after ten minutes. Instead of a smell of stale air, there is now a fine citrus fragrance.

The spray mist is so fine and so effective that the small amount provided is entirely sufficient for a car. This also means that less propellant gas is required. In order to ensure the can releases all its contents into the air stream and not into the doormat because it has tipped over, the packaging can be transformed into a stable stand. In this way, the narrow can reliably remains in an upright position.

The application is so straightforward that drivers can do it themselves. There is no need to dismantle the pollen or dust filter. Of course, this small do-it-yourself air conditioning cleaner is not as thorough as a professional clean in the workshop. But it’s faster and costs less. If the air is not better after the procedure is complete, it will indeed be necessary to call in the professionals.


Buy Klima Refresh



The second method is more thorough: Cleaning with the LIQUI MOLY A/C System Cleaner. The spray can includes a large probe with which the active substances can be directly sprayed into the fresh air supply. This ensures that not only the lines, but also the evaporator of the air conditioner is cleaned. The advantage is the simple application without requiring any additional equipment. The Cleaner can also be used by experienced end users.




The most thorough cleaning is offered by a professional clean in the workshop. It is for this purpose that LIQUI MOLY has developed the 2K A/C System Cleaner. Conventional air conditioner cleaners are sensitive to temperature and disintegrate in high temperatures. But not the 2K A/C System Cleaner. Here the two components are first fixed immediately before use. Separated they can be stored for up to two years. That's why the 2K A/C System Cleaner is particularly well-suited to hot countries. The cleaning liquid is applied to the evaporator with a spray pistol and reliably eliminates bacteria and mold.




These three methods – the simple Climate Fresh for eliminating unpleasant odors, the A/C System Cleaner spray can for quick cleaning and the 2K A/C System Cleaner for thorough cleaning – cover the entire spectrum. Everyone can find what they need depending on their wallet and cleaning performance required. And bad odors from ventilation become a thing of the past.


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