In this manner, the wearer is totally assured that his or her face shield is in place when desired, and {HEAD ~ the face shield} covers and fully protects {TAIL ~ the wearers entire face} when desired 
In this manner , the wearer is totally assured that his or her face shield is in place when desired , and { HEAD ~ the face shield } covers and fully protects { TAIL ~ the wearers entire face } when desired
OTH 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 HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH