Noise damping device for the combined intake section of a compressed air generation device which is provided for an air consumption system, in particular a pneumatic spring system, consisting of the combination of an air compressor, driven by electric motor, and an air dryer, which noise damping device, in addition to the compressed air connector for the air consumption system, which compressed air connector is provided both for aeration and ventilation of the air consumption system, has an air inlet which leads to the air compressor for the intake of air from atmosphere and an air outlet which is provided for the air dryer for discharging air dryer regeneration air to atmosphere, having the following features: a) the air inlet is connected to an intake device (4, 10, 7, 6, 11) and the air outlet is connected to a ventilating device (5, 10, 7, 6, 11); b) the intake device consists of a first pneumatic connection which leads to the outlet of an air filter and a third pneumatic connection which leads from the inlet of the said air filter to atmosphere for the intake of air from atmosphere through the air filter in the direction from the air filter inlet to the air filter outlet, and from there to the air inlet of the air compressor; c) the ventilating device consists of a second pneumatic connection which leads from the air outlet of the air dryer to the outlet of the air filter and the third pneumatic connection which leads from the inlet of the air filter to atmosphere for the ventilation of regeneration air in the air dryer regeneration phase through the air filter in the direction from the air filter outlet to the air filter inlet and from there to atmosphere; d) the intake device and the ventilating device are connected pneumatically to one another by way of a pneumatic coupling device which is arranged in the region of the outlet of the air filter; characterized by the following feature: e) the third pneumatic connecting device is configured as a noise damper. a) the air inlet is connected to an intake device (4, 10, 7, 6, 11) and the air outlet is connected to a ventilating device (5, 10, 7, 6, 11); b) the intake device consists of a first pneumatic connection which leads to the outlet of an air filter and a third pneumatic connection which leads from the inlet of the said air filter to atmosphere for the intake of air from atmosphere through the air filter in the direction from the air filter inlet to the air filter outlet, and from there to the air inlet of the air compressor; c) the ventilating device consists of a second pneumatic connection which leads from the air outlet of the air dryer to the outlet of the air filter and the third pneumatic connection which leads from the inlet of the air filter to atmosphere for the ventilation of regeneration air in the air dryer regeneration phase through the air filter in the direction from the air filter outlet to the air filter inlet and from there to atmosphere; d) the intake device and the ventilating device are connected pneumatically to one another by way of a pneumatic coupling device which is arranged in the region of the outlet of the air filter; characterized by the following feature: e) the third pneumatic connecting device is configured as a noise damper.