- Efficient Air Circulation: Our roof fan features a tube diameter of approximately 11 cm and a turbine diameter of 19 cm, ensuring quick and effective air release to keep your space dry and comfortable. - Energy-Saving Design: This non-electric roof fan operates without any power connection. It automatically ventilates your space throughout the day, eliminating electricity costs and concerns about short circuits while providing continuous, silent operation. - Comprehensive Package: Each purchase includes two non-electric roof fans, each equipped with a sturdy bracket. The vent port measures about 11 cm in diameter and 19 cm in height, enabling rapid ventilation while safeguarding your room against rain and moisture. - Durable Construction: Crafted from high-quality 201 stainless steel, this roof fan is built to last. The rust-resistant and high-temperature resistant material makes it ideal for various weather conditions, ensuring reliable performance over time. - Practical Applications: - Install in attics to expel hot air, reducing cooling costs and improving home comfort. - Use in workshops or garages to maintain air quality and prevent moisture buildup. - Perfect for use in sheds or greenhouses to promote healthy air circulation. This roof fan combines functionality, durability, and energy efficiency, making it an essential solution for maintaining a fresh and moisture-free environment.