The OEM Falcon Dust Off DPNXL Premium Air Duster is specially developed for use in environments where flammability is a concern. It provides the same cleaning power as standard Dust-Off products but without the risk of flammability. This extra-large size delivers more dust-removing power at a lower cost and is 100% ozone-safe, containing no CFDs, HCFCs, propane, or butane. Each pack contains 10 cans.