https://www.dekut.com/Health/xray-astronomy-proceedings-of-the-nato-advanced-study-institute-held-at-google/ View A Video on Air Conditioners - A Quick Introduction Air conditioners are devices that remove heat from the air through use of a compressor, a condenser, an expansion valve, a thermostat and a series of motorized fans. Tue, 22 Jan 2019 13:49:07 UTC en