Protect your cabinetry and keep your kitchen air clear and pure with the Broan-NuTone Energy Star Certified Custom Range Hood Insert. Perfect for custom kitchen designs and streamlined cabinet installations, this 21-inch one-piece insert protects the bottom of your cabinetry and looks great doing it- the flush design and depth adjustment capability make this stainless steel insert suitable for any kitchen appearance. This HVI certified range hood insert includes a three-speed rotary control for convenience, and clears the air at a max blower speed of 450 CFM to remove smoke, grease, exhaust, and odor from your kitchen. This Energy Star Certified insert operates at a quiet 1 sone of noise, so you'll save on energy costs and can communicate at a normal volume while ventilating your home. Featuring bright, 1-level LED lighting, this custom built-in range hood insert power pack makes evening cooking accessible and easy. The smooth, stainless steel surface and quick-release dishwasher-safe aluminum mesh filters allow for easier cleaning, and an optional non-duct filter kit (sold separately) eliminates the need for strenuous ductwork. This 11.44" x 21" x 10.56" insert is ADA compatible, and works in tandem with an optional remote wall control (sold separately).