Product Name: 4inches 100 Water Smoke Resistant Duct Inline Fan Model NO.: CDF100Pro Certification: RoHS, CE, CCC Mounting: Duct Fan Electric Current Type: AC Type: Exhaust Fan Blade Material: Plastic Material: metal Motor: IP55 Enamelled Wire: 100% Copper Bearing: Chl Ball Bearings Trademark: MEANSOON Transport Package: Carton and Pallets Specification: 100 Origin: Hangzhou HS Code: 8414599099 Product Description 4inches 100 Water Smoke Resistant Duct Inline FanWe develop thiskind of inline duct fan with IP55 sealed motor, which fully resistant water smoke from cooking, is perfect choice for small kitchen or more tough situation. and new designedair deflectorlead more airflow and less noise.