Ключевые слова: abstract, air, airconditioning, airflow, appliance, closeup, cold, conditioner, conditioning, cool, cooler, cooling, cover, device, discharge, duct, equipment, exhaust, filter, flow, grill, holes, industrial, inlet, installation, intake, macro, nobody, object, of, outlet, part, plastic, pure, purifier, purity, system, vent, ventilation, ventilator,