Can be used in refrigerator, car, bedroom, kitchen, shoes cabinet, washing room, baby room, pet house and other small spaces. Can break down tiny substances in the air, reduce that can cause asthma and allergies, Kills contaminants that causes colds, flus, allergies, sinus infection, make the air fresher. UVC ray can kill the which cause odor, and the kill and oxidatively decomposes organic or inorganic odors substances. are tiny creatures that are to the eye, on the bed, pillow, sofa,carpet, they are everywhere in and make many harms: bite people skin make itching and skin redness, let people can't sleep and uncomfortable. This lamp's ray is hundreds thmes stronger than sunshine, they can kill the immediately. This lamp can remove odor just like the Smoky smell in the kitchen, musty smell in the bedroom, and the bad smell in washroom, shoes box, fridge, trash can, etc.