A filter and/or HME device (1 20) comprising an upper shell (3 22) suitable to be connected to ventilation means, a lower shell (4 23) suitable to be connected to a tracheal or tracheostomy tube of a patient, a filter and/or HME element (7, 8 31) disposed between the upper shell (3 22) and the lower shell (4 23) and a condensation screen (9 26) disposed in front of the filter and/or HME element (7, 8 31) and facing said lower shell (4 23)._The condensation screen (9 26) has a conical wall (10 27) extending from the opposite part of the filter and/or HME element (7, 8 31) to produce, together with a portion (4a 28) of the lower shell (4 23) a collection chamber (13 29) for the condensation that forms, and presents a plurality of openings (11 27a) disposed about an axis of symmetry (A B) of the conical wall (10 27).
