Abstract: A vessel (1), in particular for containing paint, comprising a reservoir (2) and a closure lid (3) which reservoir (2) is provided for being closed by said closure lid (3), which closure lid (3) is applicable on top of a liquid application tool (4), said vessel (1) having an air inlet comprising a plurality of openings (9), said closure lid (3) comprises a conically shaped part, characterised in that said air inlet being provided with a closure valve made of flexible elastomer material, said valve being resiliently mounted on said air inlet in such a manner as to cover said plurality of openings, of which each opening having a surface area of at the most 15 mm2, and as to open upon a predetermined pressure difference between a first pressure inside said vessel and a second pressure outside said vessel, said closure lid (3) being provided with a protrusion applied on said conically shaped part and forming a flat contact face for said valve.