This is a used Honeywell 51500 Series air cleaner. The manual says it will clean and recirculate the air in a 13'X14' room 6 times per hour. We used it in our old house's finished basement, but don't really need it in our new house. It worked great at clearing the air of the little bit of woodsmoke smell from our old woodstove. Included is a new Hepa filter and two-pack of carbon filters. Location: Washington it's NOT ok to contact this poster with services or other commercial interests illinois