POWERFUL AND QUIET: This under cabinet range Hood comes with 300 CFM motor will quickly ventilate your kitchen and keep the noise level below 54 dB, slim profile perfect for small apartment and condos, can be under cabinet or wall mount. Black range hood is wrapped with Blue Protective Film and needs to tear it off before installation. 2 EXHAUST OPTIONS: Under cabinet range hood 30 inch has Vertical and horizontal exhaust option, you can connect the ductwork to the top or rear of the range hood. Vent location is on the top with 4.7 In. Round or rectangular (6 In. X 2.4 In.) at the back, can vent through top or back.