When Franklin D. Roosevelt and his family experienced their first warm season at the White House in 1933, air-conditioning units were added to the private quarters, although FDR rarely cooled the air in the Oval Office, choosing to work in shirt-sleeves with the windows open.
Chrysler Airtemp. The 1953 Chrysler Imperial was one of the first production cars in twelve years to offer modern automobile air conditioning as an option, following tentative experiments by Packard in 1940 and Cadillac in 1941.
The 21-story Milam Building in downtown San Antonio, Texas was the tallest brick and reinforced concrete structure in the United States when it opened in 1928, as well as the first high-rise air-conditioned office building.
In 1902 Willis Carrier invents a machine to help keep paper from being ruined by the humidity. Called the Apparatus for Treating Air, the invention uses a technique similar to the one created by Gorrie; air blows over cold coils to control the temperature and humidity. Other companies express interest in the machine, so Carrier starts the Carrier Air Conditioning Company of America. He will go down in history as the inventor of modern air conditioning
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