||Ultra quiet 0.3 sones at Normal speed, 2.0 sones at Mid speed, and 5.0 sones at High speed. 7.0 sones at Boost setting. 100 CFM at Normal speed, 230 CFM at Mid speed, 360 CFM at High speed, 450 CFM at Boost speed. Easy-to-clean, fully-enclosed non-stick bottom pan. 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-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.