Fellowes Pressurized Gas Duster helps to eliminate dust, dirt and debris from those hard-to-reach areas and keep your expensive electronic equipment running longer. When used as directed, the duster is moisture-, oil- and residue-free. Includes an extension tube to reach into tight areas. Keep your workstation free from dust and debris easier than using typical cleaning products. This pressurized gas duster should not be used on paper shredders or electrical motors as vapors may ignite.