The plurality of {TAIL ~ diagonally formed apertures} function to allow {HEAD ~ air flow} throughout the two piece housing 
The plurality of { TAIL ~ diagonally formed apertures } function to allow { HEAD ~ air flow } throughout the two piece housing
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH