Abstract: A device for purifying air within a room. The device includes a housing having a plurality of air inlet ports and a plurality of air outlet ports. An ultraviolet ray generator is positioned within the housing along with a fan for drawing air into the housing through the air inlet ports. A passageway leading from the air inlet ports and encircling the ultraviolet ray generator to the air outlet ports provides a path for air drawn into the housing. The ultraviolet rays produced by the generator kill bacteria, germs and viruses in the air passing thereby through the passageway and the passageway maximizes a distance traveled by the air through the housing and thereby maximizing exposure of the air to the ultraviolet rays. The device also generates ozone for neutralizing undesirable odors, such as stale tobacco smoke and mildew in the air drawn into the housing.