Upon passage of a moisture donating fluid through the inactive region of the device flowpath, {HEAD ~ at least some} of the water contained therein passes through {TAIL ~ the water transport unit} to a portion of the fuel cell that is in need of humidification 
Upon passage of a moisture donating fluid through the inactive region of the device flowpath , { HEAD ~ at least some } of the water contained therein passes through { TAIL ~ the water transport unit } to a portion of the fuel cell that is in need of humidification
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH