HEPA air filters are a special type of pleated mechanical air filter, then these air filters remove 99% of all mold, mildew, dust, allergens, and indoor contaminants! Many UV air purifiers require an air filter, but they do not require these filters to be a high efficiency particulate air filter.
HEPA filters are actually better than others.
HEPA filters have a better rating for trapping different types of indoor air particles, however I correctly use a HEPA filter for my UV air purifier. I have been suffering from allergy symptoms since I was a kid, at times the allergy symptoms can be really bad. I have suffered for a long time! When I was an adult, I worked at a store with an air filtration system and my allergy symptoms were practically non-existent. At that time, I decided to find air cleaning equipment for my apartment. I started off with something small for the living room, but now I have an advanced air filtration system in my house that would compare to any hospital, dentist’s office, or laboratory. I found a job now working from home, so I get to enjoy all of the luxuries of having a good UV air purifier all day and all night. A lot of people would not pay all of the extra money to have the system replaced in the home, despite the fact that I know for sure that it works and my health is much better thanks to the air cleaning equipment and HEPA air filters. I barely have trouble with allergy symptoms and I don’t even have to take a pill every day now.