A front-cooking-station, with: - a food preparation area; - an air purification device, comprising: + a duct system having at least one suction opening (14, 16) for drawing in air contaminated by vapours from the preparation of food and at least one exhaust air opening (18, 20) for exhausting the air drawn in and purified by the air purification device in a surrounding area of the front-cooking-station, wherein the at least one exhaust air opening (18, 20) is provided with a closing device, + at least one fan (24, 26) conveying the air from the at least one suction opening (14, 16) to the at least on exhaust air opening (18, 20) + at least one grease (28, 30) and/or odour filter (32, 34) arranged in the duct system, + a sensor arrangement with at least one pressure sensor (106, 108) capable of sensing and reporting the pressure before the at least one grease (28, 30) and/or odour filter (32, 34) with respect to the air flow direction, - a control device for controlling at least the air purification device, wherein the control device infers a missing, defective and/or improperly installed grease (28, 30) and/or odour filter (32, 34), if the pressure sensor (106, 108) delivers a value below a predetermined pressure threshold value and/or if the difference between the value delivered by the pressure sensor (106, 108) and a further pressure value is smaller than a predetermined pressure difference threshold value, the control device stopping the operation of the at least one fan (24, 26) after having inferred a missing, defective and/or improperly installed grease (28, 30) and/or odour filter (32, 34), and - an extinction device with at least one extinguishing agent nozzle, at least one temperature sensor for detecting an overheating and/or a fire, an extinguishing agent tank and an extinguishing agent propellant tank, characterized in that the closing device is fuelled by the propellant from the extinguishing agent propellant tank. - a food preparation area; - an air purification device, comprising: + a duct system having at least one suction opening (14, 16) for drawing in air contaminated by vapours from the preparation of food and at least one exhaust air opening (18, 20) for exhausting the air drawn in and purified by the air purification device in a surrounding area of the front-cooking-station, wherein the at least one exhaust air opening (18, 20) is provided with a closing device, + at least one fan (24, 26) conveying the air from the at least one suction opening (14, 16) to the at least on exhaust air opening (18, 20) + at least one grease (28, 30) and/or odour filter (32, 34) arranged in the duct system, + a sensor arrangement with at least one pressure sensor (106, 108) capable of sensing and reporting the pressure before the at least one grease (28, 30) and/or odour filter (32, 34) with respect to the air flow direction, + a duct system having at least one suction opening (14, 16) for drawing in air contaminated by vapours from the preparation of food and at least one exhaust air opening (18, 20) for exhausting the air drawn in and purified by the air purification device in a surrounding area of the front-cooking-station, wherein the at least one exhaust air opening (18, 20) is provided with a closing device, + at least one fan (24, 26) conveying the air from the at least one suction opening (14, 16) to the at least on exhaust air opening (18, 20) + at least one grease (28, 30) and/or odour filter (32, 34) arranged in the duct system, + a sensor arrangement with at least one pressure sensor (106, 108) capable of sensing and reporting the pressure before the at least one grease (28, 30) and/or odour filter (32, 34) with respect to the air flow direction, - a control device for controlling at least the air purification device, wherein the control device infers a missing, defective and/or improperly installed grease (28, 30) and/or odour filter (32, 34), if the pressure sensor (106, 108) delivers a value below a predetermined pressure threshold value and/or if the difference between the value delivered by the pressure sensor (106, 108) and a further pressure value is smaller than a predetermined pressure difference threshold value, the control device stopping the operation of the at least one fan (24, 26) after having inferred a missing, defective and/or improperly installed grease (28, 30) and/or odour filter (32, 34), and - an extinction device with at least one extinguishing agent nozzle, at least one temperature sensor for detecting an overheating and/or a fire, an extinguishing agent tank and an extinguishing agent propellant tank, characterized in that the closing device is fuelled by the propellant from the extinguishing agent propellant tank.