I'm looking at an air purifier because I think I'm allergic to my pets. All review sites look like they're promoting their own products. I was about to try Consumer Reports, but people complained that the review was 3 years old and most models didn't even exist anymore. I was hoping to get your help. From what I understand, pet dander gets down to less than 1 micron. A lot of HEPA filters only down to 3 micron. Some say get an ionizer to clump the dander together, but others say ozone is bad, etc., etc. Pets = allergies, what to buy? Budget less than $500. Prefer a lot less, but don't want to waste money on a lower model that won't help. Getting rid of pets is not an option.