Downdraft ventilator with internal blower exhausts cooktop without overhead hood Compact design and thin profile installs directly behind the cooktop and saves under-cabinet space Compatible with most conventional and commercial style cooktops Unique ducting capability allows blower connection to be ducted to the left right or downward Dynamically-balanced 500 CFM centrifugal blower wheel for quiet efficient performance Permanently lubricated thermally-protected motor Conveniently located button to rise and lower chimney Chimney rises over 9-1/2 inches when activated ideal for large pots and pans Infinitely adjustable control is designed to provide convenient access to govern the blower speed Heat Sentry adjusts the blower speed to high when excess heat is detected