If you use your air conditioner as a cooler or heater, it may well result in dirty filters. Without a clean air filter, an air conditioner will not emit a clean airflow. You need to get the air filter of your air conditioner replaced at regular intervals.

If your air conditioner’s air filter is not kept clean, it will not work properly and will consume more electricity when compared to a well maintained air conditioner. Also, the occupants will be deprived of adequate cooling and heating. To be on the safe side, change the air filters of your unit as prescribed by the air conditioner maintenance staff.

The air filters in air conditioners used for commercial or industrial purpose must be changed in keeping with the work environment. The units must be checked every fortnight and replaced if found dirty.

When buying air conditioner, you must check its MEWRV ratings- Minimum Efficiency Reporting Value of 1-12. Higher rating means better ability to remove air pollutants like dust, pollen, etc.