The 129J is a modern range hood that's easy to use. It features a digital display and four buttons with LED display. These allow you to control blower power and lights. At max power, this hood is rated at 900 CFM, but you can also adjust to five lower speeds! This works if you are warming some food on the burner and want to talk with your family or guests! Or, if you're cooking high-heat food and smoke is filling the room, press the button for high power. While you cook, turn the LED lights on too; two of them will keep your cooktop bright. This hood features dishwasher-safe baffle filters, which will save you a lot of time in your kitchen. The PLFW 129J comes in two sizes. For their specific product information, check out these links: https://www.prolinerangehoods.com/30-professional-wall-hood-commercial-quality-plfw-129j-30.html/ https://www.prolinerangehoods.com/36-professional-wall-hood-commercial-quality-pljw-129j-36.html/