TO MAINTAIN A KITCHEN AT A NEGATIVE PRESSURE WHEN EXTRACTION UNIT THE AIR SHOULD BE SIMULTANEOUSLY SUPPLEMENTED. THIS CAN RESULT IN HIGH ENERGY COST. ENERGY SAVING CAN BE ACHIEVED BY DRAWING UNTEMPERED OUTSIDE AIR DIRECTLY INTO THE EXTRACTION CANOPY. THIS AIR IS THEN FROST THROUGH THE ADJUSTABLE AIR SLOT CREATING VENTURE EFFECT, WHICH INCREASES THE VELOCITY OF THE AIR STREAM GREATLY INCREASES THE EXHAUST EFFICIENCY. THE BAFFLE FILTER ARE INSERTED INTO THE CANOPY AT AN ANGLE OF APPROXIMATELY 45 DEG. C. THE AIR PASSES THROUGH THE SEMI CIRCULAR CHANNELS OF THE BAFFLE FILTERS AND IS FORCED INTO TWO DIRECTIONS SEPARATING THE HEAVIER GREASE PARTICLES FROM THE AIR STREAM BY CENTRIFUGAL FORCE. THE GREASE RUNS OF INTO THE GREASE COLLECTION GUTTER AND IS COLLECTED IN A REMOVABLE TRAY. THE COMPOSITION OF APPROXIMATELY 60% EXHAUST AIR IS PROVEN ENERGY SAVER AS ONLY 40% TEMPERED AIR IS WASTED. THE DESIGN PROVIDE THE COMFORTABLE WORKING ENVIRONMENT AS IT ALLOWS FOR HEAT REMOVAL AND THE UNTAMPERED AIR IS ALWAYS CONTAINED WITHIN THE CANOPY AND PERSONAL ARE NOT SUBJECTED TO OVER HEATED DROUGHT. OUR ISLAND HOODS ARE AVAILABLE AT COMPETITIVE PRICE.