How to clean air conditioning filter

1. Before removing the air conditioner filter, carefully open the air conditioner shell and gently open the outer cover. 

2. After opening the air conditioner cover, push the air filter upwards.  When the lower end is out of the slot, gently pull the filter down and take it out. 

3. Then carefully rinse the filter with clean water several times, which can be washed several times with a soft brush.