The Surface SURF303 is a 10 oz. canned air for cleaning delicate electronic equipment and computer components. It removes dust and dirt from hard to reach spots with a controlled blast of air. Compressed air is safe and non flammable. Designed to clean electrical components that can't be sprayed with anti-dust chemicals or cleaned with a vacuum, dust cloth, or ammonia-based spray cleaner. Does not create a static charge or dampen cleaned objects. Moisture-free and residue-free odorless and non-ozone depleting contains a bitterant to help discourage inhalant abuse.