Patent ID: 7537642

Claim:
A method for discharging an airstream from a cooking area, comprising the steps of: dividing said airstream into a first air substream and a second air substream upstream from a sorbent and passing said first air substream through said sorbent, bypassing said second air substream around said sorbent and combining said first air substream and said second air substream downstream from said sorbent and sending said combined first air substream and said second air substream back into a room, wherein the airstream is passed through said sorbent for sorption of water or water vapor present in said airstream using an air discharge device having a fan operational to pass the airstream in a first flow mode at a first predetermined flow rate discharging said airstream from said room and returning at least a portion of said airstream back to said room downstream from said sorbent; and regenerating said sorbent when said air discharge device fan is operational to pass the airstream at a second predetermined flow rate, said second predetermined flow rate being less than said first predetermined flow rate, thereby defining a second flow mode for sorbent regeneration.