This extra-strength duster removes dust, dirt, and other dry contaminants

Economizes solvent usage by removing layers of dry particulate first so the solvent can work immediately on more difficult-to-remove soils. Ideal for use on keyboards, circuit boards, surface mount devices, computers and other electronic components, assemblies, and photographic and video equipment. Nonflammable. Ozone-safe, CFC- and HCFC-free. 100% ultra-pure HFC-134a leaves no residues. Completely safe for use on most plastics.