dirty air duct vent hole in toilet ventilation system

---

Size: 4834px × 3223px
Photo credit: © Quality Stock / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: adult, air, apartment, bathroom, build, care, ceiling, cleaning, cold, concept, conditioner, conditioning, contractor, cooling, dirty, duct, dust, dusty, efficiency, environmental, factory, filter, flow, health, heat, high, home, house, humidity, indoor, industrial, industry, interior, moisture, office, panel, pneumonia, room, service, style, system, technology, unclean, vent, ventilation, wall, white