the processing of air to impart to it qualities that meet technological or sanitary-hygienic requirements.
Air treatment is widely utilized in hot-air heating, ventilation, and air-conditioning systems for industrial and public buildings, as well as apartment houses, farm buildings and installations, means of transportation (railroad cars, river and oceangoing ships, and airplanes), and spacecraft. Air treatment includes cleaning the air of dust, harmful gaseous admixtures, odors, and bacteria; heating, cooling, humidifying, and drying the air; and adding oxygen and aromatic substances. The equipment used in air treatment includes air filters; absorbent filters for gases and odors; ultraviolet bactericidal lamps; air washers, heaters, and coolers; regenerating and humidifying apparatus; injector and checker chambers; and conditioners.
E. E. KARPIS