A connector device for a negative pressure wound therapy system, said connector device comprising: - a connector housing, - a fluid outlet connected to said connector housing, - an air feeding port, - an air filter, and - coupling means, wherein: - said fluid outlet is adapted to be connected to a negative pressure source, - said connector device being adapted to be engaged with a wound side connector of a wound side assembly by means of said coupling means, - said wound side assembly comprising a fluid removing conduit and an air supplying conduit, - a portion of each one of said fluid removing conduit and said air supplying conduit being connected to said wound side connector, and - said connector device being such that when said connector device is engaged with said wound side connector, said fluid removing conduit is fluidly connected to said fluid outlet and said air supplying conduit is fluidly connected to said air feeding port such that air ambient of said connector device can be fed to said air supplying conduit via said air filter and said air feeding port, characterized in that: - said connector device further comprises an air feeding conduit comprising said air feeding port and an air inlet opening, said air feeding conduit being an integrated part of said connector housing, - said connector housing has a connector housing device side and a connector housing coupling side, said connector housing device side being positioned on the opposite side of said connector housing coupling side, - said connector device adapted to be connected to said wound side connector at said connector housing coupling side, - said air filter is arranged inside an air filter housing comprising the air inlet opening arranged to allow air to flow through said air filter, wherein said air inlet opening is provided on said connector housing device side, - said air filter housing is arranged as an integrated part of the connector housing, and - said air filter provides an air leakage of between 10ml/min to 70 ml/min at a pressure of 120 mmHg. - a connector housing, - a fluid outlet connected to said connector housing, - an air feeding port, - an air filter, and - coupling means, - said fluid outlet is adapted to be connected to a negative pressure source, - said connector device being adapted to be engaged with a wound side connector of a wound side assembly by means of said coupling means, - said wound side assembly comprising a fluid removing conduit and an air supplying conduit, - a portion of each one of said fluid removing conduit and said air supplying conduit being connected to said wound side connector, and - said connector device being such that when said connector device is engaged with said wound side connector, said fluid removing conduit is fluidly connected to said fluid outlet and said air supplying conduit is fluidly connected to said air feeding port such that air ambient of said connector device can be fed to said air supplying conduit via said air filter and said air feeding port, - said connector device further comprises an air feeding conduit comprising said air feeding port and an air inlet opening, said air feeding conduit being an integrated part of said connector housing, - said connector housing has a connector housing device side and a connector housing coupling side, said connector housing device side being positioned on the opposite side of said connector housing coupling side, - said connector device adapted to be connected to said wound side connector at said connector housing coupling side, - said air filter is arranged inside an air filter housing comprising the air inlet opening arranged to allow air to flow through said air filter, wherein said air inlet opening is provided on said connector housing device side, - said air filter housing is arranged as an integrated part of the connector housing, and - said air filter provides an air leakage of between 10ml/min to 70 ml/min at a pressure of 120 mmHg.