A nonflammable, ozone-safe precision duster in the 10 ounce 284 gram tool-kit sized aerosol package. Widely used in circuit test and repair, it sprays a clear, nonflammable, high-pressure compressed gas to blow dust, lint and grit from keyboards, optics, machinery and circuitry. Nonflammable for maximum safety. High-pressure, high-purity, leaves no residues.