Air travel is one of the busiest industries in the world and passenger comfort remains at the top of the priority list. Before an aircraft even takes off, one of the most critical systems that ensure the comfort and safety of travelers is the airplane pre conditioning air unit. This specialized equipment supplies cool or heated air to aircraft while parked on the ground, reducing reli... https://www.drezaircon.com/knowledge/airplane-pre-conditioning-air-unit-pca/