We do a lot of work with hotels and casinos to improve air quality, but Catalytic PURE AIR purifiers are great for your residential needs too. Lot of folks who want to improve their indoor air quality due to asthma, allergies, pets, animal dander, odor and or respiratory issues take advantage of our free trial so they can see the benefits of photo catalytic technology to improve indoor air quality. Get more information at: BetterAirToday.com or call 800 989-8299.