คุณลักษณะ

• It can be used for a long time without noise, power, or the need for repair and replacement after installation.
• It has a robust structure that does not allow rain or wind to blow in.
• Made of galvalium steel sheet with excellent weather resistance.
• For ventilation and odor removal in small warehouses and factories.
• Especially in places where forced ventilation is not required, where a large amount of water vapor is generated and where the use of motors is impossible.