Ozone is a unique solution to the common problem of bacteria, lice, bed bugs and odor in bedding. It automatically and safely sterilizes up to three mattresses ranging from twin to king size. Items to be sterilized are placed in large plastic bags (included), which are tied shut and connected to the Bed Sterilizer by hoses. The unit automatically evacuates the air from the bag, replaces it with pure ozone and then allows the ozone to disinfect the contents of the bag. It then evacuates and decomposes the ozone into plain oxygen. The total cycle takes about an hour. When the operator returns, the sterilized items are ready for immediate use, and the room is free of ozone.