Blast away all dust, dirt and microscopic debris from hard to reach areas. Precision cleaning has now been made simple with Power Duster®. This revolutionary product can rid residuals from areas once thought to be impossible to clean. Power Duster® is specifically formulated to keep equipment clean – prolonging equipment performance and longevity. By using the handy trigger and extension tube, cleaning is both safe and easy. Power Duster® leaves no residue, is ozone safe-and the shelf life is indefinite. Ideal for use on computers, keyboards, lab equipment, printers, fax machines, copiers, scanners, telephone and audio equipment, clocks and timepieces, televisions, VCR, CD, DVD, small engines, engine parts, power tools and many more. Power Duster II contains 134A propellant, which is non-flammable and is recommended for use on energized equipment. NSN 7930-01-398-2473 contains a bitterant to discourage inhalant abuse. 12 per box.