What drives the ventilation fan?
The ventilation fan uses the motor to drive the blades to rotate to realize the exchange of indoor and outdoor air. However, the exhaust fan can only complete partial exhaust, and cannot allow a large amount of outdoor air to enter the room, so it cannot achieve real air circulation. And because the exhaust fan operates in one direction, it can only exhaust indoor air. In addition, the length of the pipe will weaken the exhaust force during operation, so it is only suitable for installation in t...
2022-12-21

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