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