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The 1986 edition of Dr. John Watt's Evaporative Air Conditioning Handbook identifies the origins for modern American evaporative cooling as either from the East Coast or Southwest. In the early 1900s, air washers were invented in the East and air coolers were developed in Southwest (Arizona and California).
Thereâs no denying, though, that a good air conditioner can beat the heat. Carrier died in 1950, at 73, but his company still exists and remains a major manufacturer of cooling and refrigeration systems. Source: Various. Photo: Willis Carrier poses proudly in 1922 with the first chiller.