Formulated with HFC-134a, these exceptionally pure, moisture free, inert gas, high velocity products remove particles without the use of harmful solvents. Vortex? 360ø, an invertible high velocity duster, can be sprayed in any direction without threat of dispensing liquid on valuable equipment. Vortex? and Vortex? 360ø clean and remove microscopic contaminants and dust particles from all types of electronic equipment. They are ideal for the removal of dust, lint and other contaminants from computers, printers as well as optical cleaning equipment.