Solar Roof Ventilation Fan (VDO)
1) Install on the roof to insulate the heat at an attic
2) Ventilate high temperature, dust or odor
Can be installed at homes / offices / animal houses / shopping malls / factories / warehouses / chemical storage, etc.
This VDO: is a test of a solar roof ventilation fan that helps cooling the temperature under the roof by 5-7 degree Celsius
More detail Solar Roof Ventilator
- By: DWA COOL
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