An exhaust fan is configured to draw air into {HEAD ~ the housing} through the evaporative medium pad and out {TAIL ~ the exhaust vent} 
An exhaust fan is configured to draw air into { HEAD ~ the housing } through the evaporative medium pad and out { TAIL ~ the exhaust vent }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL