A decorative ring shaped pan about {TAIL ~ the light} can have vents that receive {HEAD ~ the incoming air} into the fan, which is exhausted by the blower 
A decorative ring shaped pan about { TAIL ~ the light } can have vents that receive { HEAD ~ the incoming air } into the fan , which is exhausted by the blower
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH