The EVOLUTION 4 is the most powerful under-cabinet hood provided by Broan, that’s why we classify it as a high performance range hood and not just your typical under-cabinet hood, It comes equipped with a precision balanced centrifugal blower that delivers unsurpassed quiet operation and power, On boost setting it moves up to 630 CFM and is ultra-quiet at less than 0, 3 sones on working speed! The EVOLUTION 4 has a four-speed blower control to allow for superior power when needed and under all circumstance provides the ultimate in quiet and filtration, Ultra quiet <0, 3 sones at Normal speed, and 4, 5 sones at High speed, 7, 5 sones at Boost setting, 150 CFM at Normal speed, 470 at High speed, 630 CFM at Boost speed, Easy-to-clean, fully-enclosed non-stick bottom pan, Dishwasher-safe, quick latch, aluminum premium-mesh filters with antimicrobial coating, Soft-touch, sealed green LED display for lighting and blower control with clock/timer, delay-off, and ambient light sensor and sleep mode, Optional remote control with blower speed, lighting and delay on/off control capability (battery included), Four Halogen MR16/GU10 50W lamps (bulbs included), Four-level light settings with theater-style transitions; plus ambient light sensor that automatically turns lighting on at night, Broan Advanced Heat Sentry detects excessive heat and adjusts blower speed for proper ventilation, Compatible with optional make-up air damper accessory, Designed to work with BROAN automatic make-up air dampers: MD6T MD8T, Specifications:, Blower Air Mover Type: Centrifugal Blower, CFM (Airflow), Color/Finish: Stainless Steel, Duct Connector Size: 7"", Filter Type: Aluminum, Light Bulb Quantity: 4, Lighting Function: Four-level, Lighting Type:, Halogen, Includes Nightlight, Max Sones/100 CFM:1, 0, Minimum Height Above Cook Top: 30"", Mounting System: Wall, Mounting Type: Under Cabinet, Non-Ducted Recirculation Capable:, Convertible, Ducted, Product Depth (inches): 20-1/8"", Product Height (inches): 7-1/4"", Product Width (inches): 30"", Rated Amps: 3, 5, Remote Control: Optional, Sones Certified Horizontal High: 4, 5, Sones Certified Horizontal Low: 0, 3, Sones Certified Vertical 7"" Round High: 5, 5, Sones Certified Vertical 7"" Round Low: 0, 3, Sones Certified Vertical High: 4, 5, Sones Certified Vertical Low: 0, 3, Switch Control Settings: 4, Switch Style: Electronic, Voltage: 120, SKU: ALMO3834