Gas duster

Gas duster, also known as canned air or compressed air, is a product used for cleaning electronic equipment and other sensitive devices that cannot be cleaned using water. Despite the name "canned air", the cans actually contain gases that are compressable into liquids. Air on the contrary, cannot be compressed into liquid at any pressure since the critical temperatures of air components (-146.9 C for nitrogen; -118.6 C for oxygen) are much beyond normal handling temperatures. Duster gases are such as 1,1-difluoroethane, 1,1,1-trifluoroethane, or 1,1,1,2-tetrafluoroethane. Hydrocarbons, like butane, were often used in the past, but their flammable nature forced manufacturers to use fluorocarbons. When inhaled, gas duster produces powerful psychoactive effects and may be harmful to health.