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China Roof Ventilation Fan - Suppliers & Factory for Effective Indoor Air Quality Improvement
Product Description
The roof ventilation fan applies the theory of convection between natural wind and air to accelerate and transform parallel airflow into vertical so as to improve indoor ventilation. The hot air rises and cold air falls, which makes the fan rotate. It can effectively remove indoor soot, smoke, odor, moisture, heat, decorative harmful gas, dust, human metabolism and other dirty volatile mixed-doped odor as well as prevent virus and bacteria invasion and indoor pollution, improving the working environment of industrial plant.
Detailed Images
Material: Made of high-class stainless steel or color steel by stretching forming, featuring an attractive appearance, no rust, rainproof design, and high-efficiency ventilation.
Bearing: Equipped with a fully sealed bearing, which ensures the system operates smoothly and constantly.
Special Shaft & Lubrication: Special central shaft design and high-class lubricating bearing system prevent turbine blades from deforming when rotating at high speeds, significantly extending the service life.
Installation Instructions
Frequently Asked Questions
How does the roof ventilation fan operate without electricity?
It operates using the natural convection theory. The temperature difference between indoor and outdoor air causes hot air to rise and cold air to fall, which generates airflow. Combined with natural outdoor wind, this parallel airflow is converted into vertical rotation, driving the fan without electrical power.
What materials are used in the construction of this roof fan?
The fan is constructed from high-class stainless steel or color steel. The components are formed using a specialized stretching process, ensuring a rust-proof finish, rainproof design, and long-term durability.
Will rain leak through the ventilator during storms?
No, the turbine blades are designed with a specific angle and curvature that prevents rainwater from entering the building, even during heavy rain and strong winds, while still maintaining high ventilation efficiency.
How does the bearing system affect the lifespan of the ventilator?
The ventilator features a fully sealed bearing and a high-class lubricating system. Coupled with a special central shaft design, this setup prevents the blades from deforming during high-speed rotation, ensuring smooth, constant operation and a significantly extended service life.
What types of indoor pollutants can this ventilation fan remove?
It effectively removes indoor soot, smoke, odor, moisture, excessive heat, dust, and decorative harmful gases. By continuously cycling the air, it helps prevent indoor pollution and creates a healthier working environment.














