SuperAir 15 Inch 20W air vent attic fan with stock

  Product Description:   solar or PV fans run on solar power and pull superheated air out of your attic to be replaced by cooler outside air.   The standard line-powered fans actually cost more to operate than they generate in savings. And they can create zones of negative pressure, which risks pulling conditioned air from the house into the attic and the dangerous possibility of pulling gases from combustion appliances back into the house — namely, carbon monoxide. Since solar-powered fans don't draw nearly as much air as line-powered fans, neither of those concerns comes into play. Plus, a PV fan doesn't cost anything to operate once it's in place. Company Information   Why Choose Us? Advantages we have: A. Experienced solar fan supplier; B. Professional design team and sales department for your service; C. Alibaba golden supplier, factory recognized by 'CE/ISO9001' and so on; D. 7/24 service for you, all the question will be dealed within 24hours. Benefit you get: A. Stable quality ——Coming from good materials and technic B. Lower price——Not cheapest but the lowest at the same quality C. Good service——Satisfactory service before and after sale D. Delivery time——2-5 days   Certification:       Customers From Worldwide: