| abstract |
An HME (heat and moisture exchanger) which comprises a septum (or filter) (600), in turn comprising a sheet (601) having a number of substantially rectangular units (601a, 601b, 601c, 601d) connected to one another in twos by hinges (CN1, CN2, CN3). A respective sealing frame (602) is stamped on each unit (601a, 601b, 601c, 601d). Furthermore, inside the sealing frame, two first sealing rings (603a) and two second sealing rings (603b) are formed about four through holes (604, 605, 606, 607) formed at the four corners of each unit (601a, 601b, 601c, 601d). |