The performance of an integrated air purifier for control of aerosol, microbial, and odor

A new type of an air purifier has been developed for a simultaneous control of aerosol, microbial, and odor in living environments using ozone, corona precharger, an electrified minipleats filter, and an ozone-decomposing catalyzer as well as a semiconductor ozone sensor for safety control. Ozone is generated in the corona precharger by enhancing negative corona with the application of a higher-than-ordinary voltage. This device, which is named AIP, indicates 85% one-through number collection efficiency for aerosol particles in the size range of 0.1-1.0 mm. AIP shows a very satisfactory deodorizing performance for man-originated and living environment-originated odors, such as ammonia, hydrogen sulfide,methylmercaptane, etc. The AIP also effectively kills, through long exposure to low-concentration ozone, most bacteria, fungi, viruses, and other microbials and small insects collected in its filter