Ключевые слова: air, architecture, background, building, chimney, clear, concept, construction, design, detail, engineering, environment, equipment, exhaust, exterior, frost, frosty, frozen, gutter, home, hot air, house, industrial, industry, metal, modern, nobody, outdoor, pipe, roof, roofing, rooftop, shiny, sky, smoke, stainless steel, steam, steel, structure, system, technology, top, tube, vent, ventilating, ventilation, ventilator, winter,