Question: how to clean air conditioning unit filter?
Answer: Step 1: Remove Filter. Turn the supply of electricity to the air conditioner unit off and remove the cover. ... 
Step 2: Vacuum the Filter. Take the filter out to prevent dust from spreading inside the room. ... 
Step 3: Submerge the Filter in Water. ... 
Step 4: Spray the Filter. ... 
Step 5: Allow Filter to Air Dry.