The Uses and Dangers of Aerosol Spray

Aerosol sprays are systems that dispense a mist of liquid particles. They consist of a can, valve, and actuator. Historically, aerosols were developed in the late 18th century, with the first patent in 1927. CFCs, once used as propellants, were found to harm the ozone layer, leading to global warming. Alternatives like hydrocarbons, nitrous oxide, and carbon dioxide are now used, though some are flammable. Medicinal aerosols use hydrofluoric alkanes, and manual pumps are alternatives. Safety concerns include intoxication, burns, and flammability, necessitating careful handling.

What are some alternatives to CFCs that are used as propellants in aerosol sprays?

What are the main components of a typical aerosol spray product?