Step 1
Ensure the purifier is unplugged.
Step 2
Look for blockages in the air inlet holes on the filter. Use a soft brush to remove debris.
Step 3
Look for blockages in the small aperture inside the loop amplifier. Use a soft brush to remove debris.
Step 4
Press both buttons to lift off the loop amplifier.
Step 5
Lift off the filter and look for blockages around the air inlet holes under the filter.