Who invented air conditioning?

Air conditioning was invented by Willis Carrier.

The first modern, electrically powered air conditioning system was invented in late 1902 by Willis Carrier (1876-1950). The difference between its design and Wolff's design is that it not only controls the temperature, but also controls the humidity of the air to improve the quality of the production process at a printing factory in Bucklin, New York. This technology provides a low heat and humidity environment, allowing for more accurate paper area and ink arrangement.

Subsequently, Carrier's technology began to be used in the workplace to improve production efficiency, and the Carrier Engineering Company was established in 1915 to cope with the surge in demand. With gradual development, air conditioning began to be used to improve comfort in homes and cars. Sales of residential air conditioning systems didn't really take off until the 1950s. Built in 1906, the Royal Victoria Hospital in Belfast, Northern Ireland, is of special significance in architectural engineering and is known as the world's first air-conditioned building.

The development and popularization of air conditioners

The initial air conditioners and refrigerators used toxic gases such as ammonia and methyl chloride. The leakage of this type of gas can cause major accidents. Thomas Midgley invented chlorofluorocarbon gas in 1928 and named it Freon. This refrigerant is much safer for humans, but is harmful to the atmospheric ozone layer. ?

Most Americans are first exposed to air conditioning in a movie theater. Cinemas in the 1920s took advantage of air conditioning technology that promised to provide audiences with cool air, making air conditioning as attractive as the movies themselves, and summer replaced winter as the peak moviegoing season. Subsequently, a large number of year-round indoor entertainment venues such as casinos, indoor sports arenas and shopping malls emerged, all thanks to the advent of air conditioning.

Reference for the above content:

Baidu Encyclopedia - Air Conditioning