Willis Haviland Carrier

Willis was an American engineer who invented the first electrical air conditioning in 1902. His corportation in 1915 was called the Carrier Corporation who distributed heating, ventilation , and air conditioning.

Source

Carrier's Air Washer and Humidifier

https://commons.wikimedia.org/wiki/File:Catalog_13-_Carrier_air_washers_and_humidifiers-_applied_to_public_office_and_industrial_buildings,_with_notes_on_humidity_(1913)_(14592387989).jpg

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