Product review (1 stars): Bad Design
Just install my new Bosch hood vent.  Just like the other review, it blows air back into the house.  It is designed to be either recirculated or exhausted air.  Even though the recirculate damper is closed all the way, it send about 20% of the blown air back onto the kitchen.  DO NOT BUY THIS UNIT.  It took me 3 hours to messing around hooking this up and now it is going back to the store.