Help to keep the air clean using a GermGuardian True HEPA Ultra-quiet Air Purifier. Add it in the rooms you are using to filter the air. UV-C light technology kills germs including staph, influenza and rhinovirus. Also provides allergy relief using a True HEPA filter. Choose from 3 speeds depending on your needs, including a low speed that runs ultra-quiet. 218 CADR (Clean air delivery rate sq ft per minute). These units will handle a room up to 338 sq ft on their own.