Ключевые слова: aged, air, architecture, background, barrier, block, box, building, cavity, cement, concrete, conditioner, conditioning, cooling, design, detail, dirty, dust, dusty, enclosure, flow, grunge, hole, industrial, industry, line, old, partition, pattern, power, rectangle, rectangular, repetition, surface, tarnish, texture, through, unclean, used, vent, ventilation, ventilator, wall, weathered, wind,