Since prehistoric times, Snow and Ice were used for cooling. The business of harvesting Ice during winter and storing for summer in late 17th century.

This practice was replaced by mechanical ice-making machine. 2nd Century Chinese inventor Ding-Huan of the Han Dynasty invented a rotary fan for AC.

For 17th Century, Cornell’s  Drebbel demonstrated “Turning summer into winter” for jams of England by adding salt to water.

James horrison’s first ice-making machine began in operation in 1851. Followed in 1853, vapor compression refrigeration system was granted in 1855.

 Modern AC emerged from advanced in chemistry during the 19th century. The first large scale electric AC was invented and used in 1902 by American inventor Willis Carrier.

Willis Carrier is also known as fater of HVAC.

In 1902, First modern electric air conditioning unit was invented by Willis Carrier in Baffalo, New York.

The First Air-Conditioner, designed and built in Baffalo by Carrier, began working on 17th July 1902.

In 1995, Germany made CFC refrigeration illegal.

In 2004, Greenpeace worked with multinational corporation like Coca-Cola and Unilever and later Pepsico and other, to create a corporate coalition called Refrigerant Naturally