Lis and I have a HEPA filter in the bedroom: both of us have allergies, and it does seem to help. I replaced the filter cartridge yesterday. It’s definitely doing something, as you can see from the dust buildup here on the prefilter.
Doug's photo blog — originally a photo a day, now not so much
Lis and I have a HEPA filter in the bedroom: both of us have allergies, and it does seem to help. I replaced the filter cartridge yesterday. It’s definitely doing something, as you can see from the dust buildup here on the prefilter.