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It consists of a cylindrical pressure vessel that contains a fire-extinguishing agent such as water, foam, carbon dioxide, or dry chemical powder. The Wikipedia page on fire extinguishers provides detailed information about their types, functioning, history, and maintenance. The most common types of fire extinguishers include water extinguishers, foam extinguishers, carbon dioxide extinguishers, and dry chemical extinguishers. Each type has its unique properties and is suitable for specific types of fires. The article explains how fire extinguishers work by expelling the extinguishing agent towards the fire, thereby removing one or more elements needed for combustion, such as oxygen, heat, or fuel. It also discusses the importance of using the correct type of extinguisher for a specific fire to maximize its effectiveness. The history section traces the development of fire extinguishers over time, from ancient civilizations' early attempts to control fire to the invention of modern extinguishers in the 19th century. It highlights key milestones and notable inventors who contributed to the evolution of these life-saving devices. In addition, the page provides guidance on how to use a fire extinguisher properly, including the acronym "PASS" (Pull the pin, Aim at the base of the fire, Squeeze the handle, and Sweep from side to side). It also addresses the importance of regular maintenance, inspections, and proper storage of fire extinguishers. Overall, the Wikipedia page on fire extinguishers serves as a comprehensive resource for anyone seeking information about these essential fire safety devices. It covers aspects ranging from their historical context to practical usage tips, making it a valuable reference for both laypeople and professionals in the field of fire safety.