how to clean air conditioner filter

If you have air conditioning or air conditioning equipment at home or at work in Malaysia, you have surely wondered how to clean air conditioning filters. Without a doubt, it is a common question as well as a necessary one. The maintenance of the air conditioning equipment is not an option, but a necessity to ensure that it works as it should. In this post, we will tell you not only how to clean air conditioner filter, but why to do it and how often.


Air conditioning equipment requires periodic maintenance to have a long useful life, with optimal performance. One of the most important tasks in this direction is to take care of the good condition and hygiene of the air filters. A dusty filter can also be the cause of why aircon is not cold.

taking the fitler out from the air conditioner

1. Remove The Filter From The Air Conditioner

To clean air conditioner filter, you must first remove them from the air conditioning equipment. They are generally easily accessible to avoid any kind of problem during extraction. In case of doubt, it is recommended to consult the equipment manual before

Air conditioning filters are generally made of fibers that are not excessively hard like nylon or the like. Therefore, it is necessary to avoid the use of any type of abrasive product.

Filters are the first and main protective barrier that air conditioning equipment has to keep in shape. Its function is to filter and trap most of the airborne particles, improving their quality.

washing aircon filter with water

2. Clean The Aircon Filter

To clean the filters, simply remove them from the equipment and wash them gently with lukewarm water. In principle, it will be enough to rub them only with your hands. Soaps or other strong products should not be applied.

Vacuum cleaners or similar appliances can also be used If necessary, soft bristle brushes should be used to avoid damaging the filter fibers.

putting the aircon filter back

3. Place The Filter Back In

They must then be left in the air to dry. Once clean and dry, they must be placed in the initial position they occupied within the equipment. That’s it. Easy peasy, lemon squeezy. That’s how you clean air conditioner filter.


As we anticipated at the beginning, maintenance is essential for the proper functioning of air conditioning equipment. Mainly we can highlight two essential reasons:

  • Performance. The storage of dust and other particles in the filters hinders the flow of air. The equipment has to make an extra effort to function normally, which causes a higher consumption. Such excessive consumption not only affects our pockets, but can also shorten the useful life of the equipment. In short, the joke can come biting back in the form of expensive aircon repairs.
  • Air quality. When filters do not have a minimum maintenance, bad odors proliferate. If they are not cleaned regularly, they lose the ability to trap “harmful” particles or allergens in the air.


On this point, there is no single answer: it depends. It depends on the type of machine ( split , ducts, etc.). Also of the use made of it. Or the time of year … Depending on the manufacturer and the model, the periods vary. What there is consensus about is that, in general, they are cleaned much less often than they should be. 

If we stick to the traditional splits, most manufacturers recommend cleaning the filters every two weeks or even earlier. Also, if the equipment has been turned off for a long period of time, it is advisable to carry out a check before starting its normal use.


To clean the ducted air conditioning filters, you have to access the false ceiling. This is where these types of air conditioning machines are located. It is usually located in the bathroom or other secondary rooms.

Once we have located the machine, the filters are usually found at the back of it. For its washing and subsequent drying we will proceed, unless contraindicated by the manufacturer, in the same way as explained above.

Cleaning the filter is the basic thing that a home owner can do. However, for more deep cleaning that involves disassembling the air conditioner, it’s best to give a call for your local aircon technician.

Sol Aircond Service provides quality and professional aircond services for both residential and commercial sectors in Cyberjaya, Kuala Lumpur, Seri Kembangan and more. Contact us today and we will get your aircon worries resolved.

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