The Broan Evolution 2 Series Range Hood is a quiet, 350 CFM under-cabinet range hood with fully enclosed design for easy cleaning. The dishwasher-safe aluminum micromesh filters with antimicrobial protection are standard, but non-ducted recirculating filters are available for installations not conducive to ducting, sold separately. Independent three-position electronic soft-touch controls for both the four halogen lamps light setting, and the blower motor, while Advanced Heat Sentry will automatically boost the blower speed should it detect excess heat. Offers four-way convertibility with 3-1/4 x 10 inch horizontal or vertical discharge, 7 inch round vertical discharge, and non-ducted recirculating. Includes a 3-1/4 x 10 inch damper/adapter.