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 manual resuscitator apparatus having a patient valve includes a housing having a first port for connection to ventilator bag, a second port for connection to a patient mask and a third port for an atmospheric vent. An air channel is configured integrally within the interior of the housing and a manometer is used for receiving air from the air channel. Either a linear or dial manometer is formed as a portion of the housing so the clinician can read both patient inhalation pressure from the first port and patient exhalation pressure from the second port.