The propellants in aerosol cans are typically combinations of ignitable gases and have been known to cause fires and explosions. [26] However, non-flammable compressed gases such as nitrogen and nitrous oxide have been widely adopted into a number of aerosol systems such as air fresheners and aerosolized whipped cream, as have non-flammable liquid propellants. [27] U.S. Patent 2,331,117, filed October 3, 1941, and granted October 5, 1943. Patent No. 2,331,117 (Serial No. 413,474) for an aerosol "dispensing apparatus", filed by Lyle D. Goodhue and William N. Sullivan (including dispenser drawing)

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Aerosol spray is a type of dispensing system which creates an aerosol mist of liquid particles. It comprises a can or bottle that contains a payload, and a propellant under pressure. When the container's valve is opened, the payload is forced out of a small opening and emerges as an aerosol or mist. In 1939, American Julian S. Kahn received a patent for a disposable spray can, [5] [6] but the product remained largely undeveloped. Kahn's idea was to mix cream and a propellant from two sources to make whipped cream at home—not a true aerosol in that sense. Moreover, in 1949, he disclaimed his first four claims, which were the foundation of his following patent claims.

Article "Aerosols and Insects", by W.N. Sullivan, "The Yearbook of Agriculture - Insects", United States Department of Agriculture, 1952

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a b U.S. Patent 1,800,156— Method and Means for the Atomizing or Distribution of Liquid or Semiliquid Materials, issued April 7, 1931 Photo: Aerosols drifting over my home. Clouds are aerosols of water vapor dispersed through air. Interestingly aerosols (naturally created ones such as smoke from forest fires as well as the ones we spray) have interesting and very complex effects on cloud formation. You can read a little bit more about that from image: aerosol and bov pressurized containers, illustration". Archived from the original on 10 August 2016 . Retrieved 13 July 2017. Our bespoke colour-matching service means we can supply premium custom spray paints. Choose from RAL, Pantone, British Standard, Dulux, Classic Car, Decorative, Federal Standard/AMS Standard, Fired Earth, Little Greene, NCS or Tractor Agriculture plant and machinery colours.U.S. Patent 2,631,814— Valve Mechanism for Dispensing Gases and Liquids Under Pressure; application September 28, 1949, issued March 17, 1953 Contents may be deliberately inhaled to achieve intoxication from the propellant (known as inhalant abuse or "huffing"). Calling them "canned air" or "cans of compressed air" could mislead the ignorant to think they are harmless; in fact, such misuse has caused deaths. [24] Article “Aerosol Bomb”, by The Golden Home and High School Encyclopedia, Golden Press, New York, 1961. Yeoman, Amber M.; Lewis, Alastair C. (2021-04-22). "Global emissions of VOCs from compressed aerosol products". Elementa: Science of the Anthropocene. 9 (1): 00177. doi: 10.1525/elementa.2020.20.00177. ISSN 2325-1026.