500mm Wind Driven Cyclone

Roof ventilator, also known as a turbine ventilator or whirlybird. It's a type of vent that uses wind energy to draw air out of a building. ​Key Characteristics ​Material: The object appears to be made of polished metal, likely aluminum or stainless steel, which makes it durable and resistant to rust. ​Shape and Design: It has a domed, spherical shape with numerous curved, vertical fins or blades. This design allows it to rotate easily in the wind. ​Function: Its primary function is to provide passive ventilation by creating a low-pressure area that pulls stale, hot air from the attic or interior of a building, improving air circulation without needing electricity. ​Installation: This type of ventilator is typically installed on the roof of a building, usually over a vent opening or duct.