| 摘要 |
The invention concerns a fluid product dispensing pump comprising a pump body (10), a piston (20) sealingly sliding in said pump body (10) between a neutral position and a dispensing position, the upper edge (11) of the pump body (10) being fixed in a fixing ring (5) for assembling said pump on a tank (1), an annular sealing joint (100, 200) being arranged between said pump body (10) and said fixing ring (5), said pump further comprising a ventilating air passage (80) between the tank and the ambient atmosphere. The invention is characterised in that an element filtering and/or treating the ventilating air (100) is provided in said ventilating air passage (80), said filtering element (100) being arranged between said upper edge (11) of the pump body and said fixing ring (5).
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