WEICON Compressed Air Spray WEICON Compressed Air Spray can be used universally on hard-to-reach parts where dust cannot be cleaned with conventional methods. The dust can come into contact without contacting the surface. Compressed Air Spray hi-fi and video devices (e.g. modules, circuit boards, magnetic heads, discs), optics (e.g. cameras and lenses), automotive insurance photography, windshield washer systems, clockworks (quartz watches), medical technology It can be used in model making, electronic parts and circuit boards.