- Ultra Quiet Motor: Range Hoods use specially designed Hi-Speed and Ultra Quiet 3 speeds motors. The twin motors revolving in opposite directions help to reduce noise and increase suction. - Three Extraction Levels to Choose from: The three levels of exhaust power allow the user to suit different styles of cooking, and can reduce the noise and improve the efficiency of energy use. Level 1 is used for Steam, Stew, Braise, Slimmer, Boil; level 2 is used for Fry, Middle Fry, Moderate Fire; level 3 is used for Deep Fry, Stir-Fry with the highest heat. - Teflon-Coated Fan: The fan blades are coated with Teflon, thus separating grease from the air and depositing it in removable cups for easy cleaning. - No Filter Required: The absence of filters enhances air delivery capacity and saves on replacement filter costs. - Grease Collection and Removal: The grease collection pan and cups may be easily removed, washed and put back. That's all!   - Three ducting options to fit most house( Vent from top with Round: 6" or Rectangle: 3 ¼ x 10". Vent from back with Rectangle: 3 ¼ x 10" ). Come with three connect adapters in the package. Specifications as Below, Material: stainless steel. Width: 29¾(in)   Depth: 22.00(in)   Height: 8.00(in). Voltage 110V-120V~ /60Hz. Suction power: 750CFM (Maximum 800CFM). Three Vent options :  Vent from top with Round: 6"  or Rectangle: 3 ¼ x 10" .  Vent from back with Rectangle: 3 ¼ x 10" . Max Motor Power consumption: 200W with 2 motors. Illumination: 40W.