304 Stainless Steel Hood, Unpowered Wind Ball 300mm, Roof Ventilator Range Hood Exhaust Fan (Size : 11.5)

[Product name] Unpowered hood[Product material] 304[Product model] 110MM, 160MM, 200MM, 300MM[Product Usage] Exhaust, heat dissipation, rainproof, anti-backflow wind[Product Usage] PVC pipes, roof flue greenhouses, breeding farms, color steel tile roofs, concrete houses

• 304 stainless steel hood, utilizing natural wind and indoor and outdoor heat convection
• It automatically exhausts the air throughout the day without the need for electricity. It also reduces fires and a lot of other unnecessary troubles caused by short circuits in wires. It moves when the wind blows.
• There is no noise when the fan is running, and the core of the fan uses fully sealed bearings. The blade bases are all stamped and formed from stainless steel plates, whi are anti-aging and have a long service life.
• The curved fan blades can strictly ensure that rainwater will not intrude under working conditions. It can operate lightly and effectively when the breeze is no less than 0.2 meters or the indoor and outdoor temperature difference exceeds 0.5°.
• 110-200mm is equipped with fixed feet or hoops, and 300mm is equipped with fixed feet for installation.