Humidifier and manufacturing process of humidifier

A humidifier comprising:

• a wound portion wrapped around a central axis and comprising enclosures, a first one the enclosures comprising a first pair of semipermeable membranes separated by a first spacer layer to form one among wet-gas channels, and a second one of the enclosures comprising a second pair of semipermeable membranes separated by a second spacer layer to form one among dry-gas channels,
• wherein the dry-gas channels are configured to receive a dry gas through at least part of a first frontal area of the wound portion and in an axial direction along the dry-gas channels,
• wherein the wet-gas channels are configured to receive a wet gas through at least part of a second frontal area of the wound portion and in the axial direction along the wet-gas channels, the second frontal area being opposite to the first frontal area,
• wherein each of the first frontal area and the second frontal area are subdivided into segments of the same size, and
• wherein the dry-gas channels or the wet-gas channels are configured as blind channels within one among the segments;
• and
• a sealing material configured to close the blind channels on the first frontal area and the second frontal area, the sealing material comprising a track separating the segments on the first frontal area and the second frontal area.