With Three Fan Speeds, This 400 Cfm Motor Class Wall Mount Kitchen Hood Provides The Right Ventilation For Every Meal You Prepare And Looks Good While Doing So. Long-Lasting Led Task Lighting Shines A Bright Light To Show You What'S Cooking, And A Grease Filter Helps Traps Unwanted Grease And Odors. The Range Hood'S Convertible Ventilation Means You Can Vent Vapors And Odors Outside Or Filter Them And Recirculate The Air, Depending On Your Kitchen Ventilation System Setup. When Venting At Low Speed, Sound Levels Can Get As Low As 44 Dba. 1