A section of industrial ductwork is mounted on a wooden ceiling, featuring a large blue metal air duct and a circular air vent. The ductwork components are prominently visible against a backdrop of wooden panels with a light finish.
A mounted industrial fan with metal blades and a protective cage is attached to a wall inside a structure with wooden supports and corrugated metal panels. The image appears monochromatic, predominantly showcasing shades of grey and black. There is also part of a metal frame or cage visible to the right side of the image.
A close-up view of a metal ventilation grille with vertical slats, showcasing two circular openings behind the grille. The background features bright colors, including red and yellow.