The Broan 36W in. QT Under Cabinet Range Hood is proof that you don't have to sacrifice power for quiet. Built to deliver power without the noise, this UL Listed and HVI Certified hood boats a patented air chamber design that reduces the noise output by up to 40 percent. At 220 CFM It boasts a 4.5 sone rating. With an infinitely adjustable rotary speed control, you can find the perfect level of ventilation for whatever you are cooking. When it's time to clean, your only job is to toss the aluminum mesh filter in the dishwasher.Installing this hood is as easy as operating it thanks to its ducted and non-ducted capability. It installs as 3.25 x 10-in. with vertical or horizontal discharge, 7-in. round with vertical discharge, or as a non-ducted recirculation unit. Dual lamps with two-levels also enhance your cooking experience and are as simple to operate as the fan speed control.About Broan-NuTone Ventilation:Broan-NuTone has been leading the industry since 1932 in producing innovative ventilation products and built-in convenience products, all backed by superior customer service. Today, they're headquartered in Hartford, Wisconsin, employing more than 3200 people in eight countries. They've become North America's largest producer of residential ventilation products and the industry leader for range hoods, ventilation fans, and heater/fan/light combination units. They are proud that more than 80 percent of their products sold in the United States are designed and manufactured in the U.S., with U.S. and imported parts. Broan-NuTone is dedicated to providing revolutionary products to improve the indoor environment of your home, in ways that also help preserve the outdoor environment.