They are designed for use on roof surfaces, as well as chimneys ventilation. They are characterized by protection class IP44, which ensures safe operation in varying weather conditions.Products made include with ABS and stainless steel, which positively affects their life and appearance. Roof fans with vertical air outburst. The item "Roof Cowl Extractor Fan Ducting Blower Industrial Commercial Ventilator" is in sale since Wednesday, November 17, 2021. This item is in the category "Home, Furniture & DIY\Heating, Cooling & Air\Air Quality & Fans\Extractor Fans". The seller is "multistoreuk" and is located in Leeds. This item can be shipped worldwide.