This Whirlpool UXT4230AYS-SS 30" Convertible Range Hood can be converted from vented to non-vented, making any installation easy. The blower exhausts up to 225 CFM, clearing away unwanted smoke and odors and keeping your kitchen fresh. New sleek, modern design with hidden vents (non-vented only) offers an easy to clean surface. Plus, 75 W incandescent lighting illuminates the cooktop while you work and variable speed controls allow for precise operation. This model comes with Dishwasher Safe Mesh filters and is compatible with either 3 1/4 x 10" Rectangular or 7" Round duct.