A unitary humidity exchange cell (HUX) is dislosed that includes at least
one composite membrane, disposed between at least one first chamber for
flow of the first fluid therethrough and at least one second chamber for
flow of the second fluid therethrough. The composite membrane include an
at least partially sulfonated humidity-conducting polymer comprising
residues derived from at least one arylvinyl monomer; and a reinforcing
substrate bonded thereto. The product finds utility in a variety of
physical and chemical processes and products whereby moisture or other
highly polar liquid or gas transfer, exchange removal or delivery is
important. A notable application is the Membrane Energy Recovery
Ventilator (MERV) in which both heat, ions and moisture is transferred
between two air streams, one intake and one exhaust, from an
air-conditioned building.
