Abstract: A heat moisture exchanger (HME) having a rotatable bypass channel includes a rotating cylinder having a first port and an outer cylinder having a second port attached to the rotating cylinder. A half-cylinder shaped foam insert is configured within the rotating cylinder to heat and moisturize air moving through the HME. The cylinder is configured to create a rotational bypass to air using an angled diverter moving between the first port and second port such that the rotating cylinder can be moved between a position for engaging the foam insert and a bypass position for bypassing the foam insert.

Abstract: A heat moisture exchanger (HME) having a rotatable bypass channel includes a rotating cylinder having a first port and an outer cylinder having a second port attached to the rotating cylinder. A half-cylinder shaped foam insert is configured within the rotating cylinder to heat and moisturize air moving through the HME. The cylinder is configured to create a rotational bypass to air using an angled diverter moving between the first port and second port such that the rotating cylinder can be moved between a position for engaging the foam insert and a bypass position for bypassing the foam insert.

Abstract: A heat exchange moisturizer (HME) having a rotatable bypass channel includes a rotating cylinder having a first port and an outer cylinder having a second port attached to the rotating cylinder. One or more foam inserts are configured within the rotating cylinder to heat and moisturize air moving through the HME. A key located on the surface of the rotating cylinder and keyway configured within the outer cylinder work to limit rotational movement. The rotating cylinder and outer cylinder are configured to create a rotational bypass to air moving between the first port and second port such that the rotating cylinder can be moved between a position for engaging the foam insert and a bypass position for bypassing the foam insert.