heat and moisture exchanger

heat and moisture exchanger

A device that retains some warmth and moisture from expired air and returns it to the intubated or laryngectomized patient during the following inspiration. The device prevents the patient from inhaling excessively cool, dry air that may damage the lower airways.
References in periodicals archive ?
Although the configuration of the heat and moisture exchanger investigated in this paper (i.e., a moving porous bed exchanging heat and moisture with air flowing in a cross-flow direction) is very different from heat-and-moisture transfer in a rotating energy wheel, there are many similarities in the basic governing equations.
Transient behavior of run-around heat and moisture exchanger system.
Parameters and Properties of Each Heat and Moisture Exchanger Size of the Exchanger [X.sub.0] x [Y.sub.0] 0.3 x 0.3 x 0.3 m x [Z.sub.0] (1 x 1 x 1 ft) Fiberglass Volume Fraction [[epsilon].sub.f] 0.1% Silica Gel Volume Fraction [[epsilon].sub.si] 0.5% Table 2.
The Performance of Membranes in a Newly Proposed Run-Around Heat and Moisture Exchanger, University of Saskatchewan.
These HMEs (heat and moisture exchangers) act as an artificial nose and regain some of the lost respiratory functions of the nose for persons breathing through a tracheostoma.