Kenro Kenair Compressed Air emits a powerful kenair jet which will blow off loose dust, fluff, grit and other unwanted particles. Used in the Photo and Film and Cinema business for cleaning conventional film cameras, computer and electronic equipment and in photo labs for negatives, slides etc. The 360ml cartridge of canned air contains a high pressure cfc/hcfc free gas which fully complies with all EU regulations. It is self sealing and the actuator can be used with replacement cartridges. Not suitable for cleaning digital camera sensors, surface coated camera mirrors or directly onto lenses or optical equipment.