How effective are air purifiers?

It depends on the kind. The really good ones aren't cheap. Quality HEPA air cleaner / air purifier brand names to look for are Austin Air, Surround Air and AllerAir. We are a family of pet owners (indoor dogs and cats) and we put one Surround Air Intelli-Pro in children's room, it seems to keep the dander to a minimum. it has a six-layer filtering system (including the HEPA, germicidal UV, and active carbon filter) and odor, dust and allergen sensors which easily detect pet dander, dust mites, chemicals, pollen, mold spores and many more.



Rocky Mountain Air