Ключевые слова: air, airflow, appliance, background, black, blade, blades, blow, blower, circle, conditioner, conditioning, cool, cooler, cooling, dark, device, electric, engine, equipment, extractor, fan, freshener, grid, industrial, industry, machine, machinery, mechanical, metal, metallic, nobody, object, power, propeller, protected, protection, rotate, rotating, rotation, round, steel, technology, turbine, vent, ventilated, ventilating, ventilation, ventilator, wind,