- Concealed variable speed control with last setting memory means the hood is set for the next time you cook your favorite dish - 440 CFM at 7.0 Sones on high setting, 120 CFM at 0.5 Sones on low setting - Two halogen lamps (designed for bulbs up to 50 W, GU10 bulbs purchase separately) light up the cooktop and surrounding area. Two-level light control gives you unmatched visibility - Mesh grease filters with Antimicrobial Protection are dishwasher-safe. The coating inhibits the growth of odor causing bacteria and protects the filter so it stays cleaner in between cleanings. Your kitchen stays fresher longer - Optional Non-Duct Recirculation Kit NDK35830WW for installations where ducting to the exterior is not possible - Heat Sentry is a smart feature that detects excessive heat and adjusts speed to high automatically to prolong product life - Non-Duct Filter 88F required for non-ducted installations, purchased separately