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Air conditioners are devices that filter the dust and particles that cool, dehumidify and optionally heat the air of indoor environments so that people can live more comfortably and efficiently. Air conditioners are used in all areas, from residences to vehicles, from workplaces to education venues.
History of air conditioner
The history of the air conditioner is as old as humanity. Early humans used animal skins to maintain their body temperature and provide personal comfort. Later, the Egyptian ruling class used captives to cool it with palm branches. The Romans used ventilation and heating systems in their famous baths. In the Middle Ages, Leonardo da Vinci built a water-powered fan to ventilate the rooms of a close friend's house.
Ventilation and central heating systems developed rapidly in the 19th century. Fans, steam boilers, radiators were invented and used. In 1844, the U.S. John Gorrie, director of Marine Hospital, introduced the new cooling machine. This was the first commercial refrigeration and ventilation machine in the world.
Air conditioning found its first major use in theaters in the early 1920s.
In 1925, he hung the notice "It's always 20 degrees" on the door of the famous Rivoli Theater in New York. Air conditioning was then installed in shops, airplanes, and automobiles.
In 1930, Thomas Midgley of the Du Pont company developed the Freon refrigerant. As a result of the rapidly continuing technical developments,
split type air conditioners have been used since the 1950s.
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