Heaven fresh multitech xj 3800 intelli pro air purifier is a powerful yet ultra quiet 7 stage air purifier that will clean the air in a 60 msup2 650 ftsup2 room removing virtually all types of pollutants including dust allergens cigarette smoke cooking odours and micro organisms intelli pro is designed with advanced sensor technology to monitor air quality then the powerful 106 cm fan accelerates air with millions of air cleaning negative ions throughout the room this is a high cap