![](http://www.alamy.com/thumbs/6/D626C5F0-7C81-40B6-BC3B-26274434677C/2H32PH7.jpg)
Steel air ventilation shafts or ventilation system at the interior of a building.
Size: 4160px × 6240px
Photo credit: © Cagkan Sayin / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: aeration, air, airshaft, airway, aluminium, aluminum, building, ceiling, chrome, circulation, conditioning, construction, contemporary, distribution, double, duct, equipment, exhaust, factory, funnel, hollow, indoor, industrial, industry, infrastructure, interior, iron, metal, metallic, people, pipe, shaft, shiny, stainless, steel, system, technology, tin, tube, tubing, vent, ventilate, ventilated, ventilation, wall