Abstract: A ventilation system for kitchens for removing fumes from the space above a cooking appliance, working together with a kitchen hood disposed above the cooking appliance, is disclosed. The system comprises: a suction element installed in the ceiling near the location of the kitchen hood; an exhaust duct connection the suction element and a ventilation funnel of the building; an exhaust fan installed in the exhaust duct; a means for capturing fumes installed in the ceiling near the suction element at the opposite side from the kitchen hood, drawing fumes from the cooking appliance to the suction element by jetting air to the suction element; and an air supply element connecting the suction element and the means for capturing fumes, with a suction fan installed in the air supple element. The disclosed system can improve the air quality of a kitchen, prevent fumes from the cooking appliance spreading to other spaces, and decrease heat buildup in the kitchen.

Abstract: A ventilation system which provides a ventilating unit which can be installed without structural constraints, and air flow can be controlled effectively by setting the direction of nozzles in various directions and also can reduce the noise from air resistance. The system includes: a damper which is formed in the rear side of the ventilating unit and having barriers which are formed in up and down sides of the inner plane of the ventilating unit alternatively; a blower unit which is connected to the damper and a fan is installed centered by a hinge therein; an ejector which is connected to the blower unit so that the air from the fan of the blower unit is ejected through a nozzle body which is installed therein.