They spin using wind (and hot air rising) to pull hot, stale air out of a building.
Common uses
🏭 Factories & workshops
🐔 Poultry houses
🏠 Residential houses (attics/ceilings)
🏢 Warehouses & godowns
🛠 Garages and sheds
Key benefits
No electricity needed ⚡❌
Reduces heat buildup 🌡
Improves airflow & ventilation 🌬
Helps remove smoke, moisture, and odors
Low maintenance & long-lasting (especially stainless steel)