Vent-A-Hood 46-Inch 600 CFM Wall Mount Hood Insert - Stainless Steel - BH246SLDSS. BH246SLD SS. Outdoor Vent Inserts. The Vent-A-Hood liner allows you to blend your ventilation needs to your space. The large active canopy is able to collect grease and contaminants more efficiently than normal vent hoods. The Magic Lung system is designed to capture 99 percent of cooking grease, steam, and odors 100 percent of the time, all the while being quieter than competitors ventilation systems. The grease collection system snaps apart for easy cleaning and is dishwasher safe for quick maintenance. With no baffles or screens to impede air flow, not only is the hood more efficient, it is engineered to prevent grease and fire from accumulating in the hood duct-work. The blowers are controlled with two-speed rocker-type controls, while the 3 LED lights feature two-level dimming. All Vent-A-Hood products are suitable for outdoor use, such as a covered patio, when installed using a GFCI protected circuit. This vent has an 8-inch discharge outlet.