This unit will be further fortified with a brim, shield, filter and means that will allow {HEAD ~ the motion} of {TAIL ~ the air} inside the nose mouth area to be controlled 
of
This unit will be further fortified with a brim , shield , filter and means that will allow { HEAD ~ the motion } of { TAIL ~ the air } inside the nose mouth area to be controlled
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH