A Timeline of Modern Aerosol Technology

• 1929: A Norwegian engineer designs an early can and valve aerosol propellant system, the “primitive” forerunner for our modern design.
• 1942: Aerosol spray cans of insect repellents are first developed for mosquito-bitten American soldiers during WWII.
• 1947: Aerosol technology is introduced to U.S. civilians in products such as refrigerators, air conditioners, and spray cans.
• 1974: Scientists propose the theory that chlorofluorocarbons (CFCs) damage the ozone layer.
• 1978: The U.S. EPA bans the use of CFC propellants.
• 1985: The Vienna Convention establishes an international cooperative to study the effects of Ozone Depleting Chemicals (ODCs).
• 1987: 24 countries sign The Montreal Protocol On Substances That Deplete The Ozone Layer, each agreeing to gradually phase out the use of ODCs (including CFCs).
• 1996: CFC propellant production in industrial countries is fully phased out under the Montreal Protocol Agreement.
• 2005: The ODC methyl bromide is totally phased out, under the guidelines of the Montreal Protocol Agreement.
• 2020: The expected final global phase-out of the ODC Hydrochlorofluorocarbons (HCFCs), under the guidelines of the Montreal Protocol Agreement.

(Source: www.AboutAerosols.com)