The AF invertible sprayduster will solve your problems to hard to tackle dust and debris. This non-flammable sprayduster is ideal for use with keyboards, computers, printers and much more. Includes an actuator so that the user can control the power of the blast, additionally containing an extension tube to ensure that you can cleaning the inaccessible areas. Can be used at an angle for the delicate areas of optical and electrical equipment. Liquid contents may cause frostbite if sprayed directly onto skin.