In {TAIL ~ one embodiment}, {HEAD ~ the fan} 210 is sized to rotate at a relative slow rate while producing a relatively high flow rate 
In { TAIL ~ one embodiment } , { HEAD ~ the fan } 210 is sized to rotate at a relative slow rate while producing a relatively high flow rate
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH