Kenair is used to blow dust, fluff or other unwanted small particles from all types of precision equipment. Emitting a powerful jet it is used extensively in the photographic, movie, computer, electronics and general servicing industries. It consists of a 360ml cartridge of Kenair + a re-usable actuator valve. When the cartridge is finished use Kenair spare cartridges code KENRO2 . Kenair is a safe dry gas, CFC and HCFC free which complies with all EC regulations.