Gases
Gases include household and commercial products such as butane lighters, propane
tanks, whipping cream aerosols, and refrigerant gases. Household aerosol propellants
and associated solvents include spray paints, hair spray, deodorant sprays,
and fabric protector sprays.
Medical anesthetic gases include either, chloroform, halothane, and nitrous
oxide (laughing gas). Nitrous oxide is the most commonly abused of these gases
and can be found in whipped cream dispensers and products used to increase octane
in racing cars.