Air supply chamber for the ventilation of animal stables, comprising:– a an outside air inlet orifice (20),– an air outlet opening (62),– an air duct (10, 60) that extends along a longitudinal axis (11) of the air supply chamber extends the producing an outside air inlet orifice connects with the air outlet opening, with• a first air duct section (10), in the direction of flow of the surrounding air of the an outside air inlet orifice to a stallufteinlassöffnung (51) extends and• a second air duct section (60), in the direction of flow of the stallufteinlassöffnung (51) to the air outlet opening (62) extends,– an air conveyor (70), the inside of the second air duct section is arranged and for conveying of air from the stallufteinlassöffnung and the first air duct section is designed to the air outlet opening,characterized by a first throttle device (30, 31), which comprises a throttle valve (30) between a first position, in which it shuts off the first air duct section in a second position in which it releases the first air duct section can be moved, in particular is pivotable, and a..
