Patent ID: 8185969

Claim:
A rough-duty face shield for a user having a preselected user body portion, comprising: a open outer layer composed of a first fabric having a generally large-pore construction, wherein the open outer layer remains efficaciously tight in construction to trap or repel or both particulate matter from intruding from an environment around the user; a tight inner layer composed of a second fabric having a generally narrowpore construction, wherein the inner layer is constructed to remains capable of permitting an efficacious air flow to the user between the obverse side of the inner layer and the reverse side of the inner layer, irrespective of a partial obstruction of the fabric openness and wherein a portion of the outer layer is affixed to drape over a portion of the inner layer, thereby forming a spatial separation between the inner layer and the outer layer; a retention pocket formed into the inner layer, generally coinciding with a preselected user body portion, formed to be resiliently and releasably retained on the preselected user body portion during use; a respirator panel formed of a third fabric on a reverse side of the inner layer generally proximate to the preselected user body portion composed of a soft fabric having a generally wide-pore construction, wherein fabric holes of the wide-pore construction are substantially larger than fabric holes of the large-pore construction, and holes of large-pore construction are substantially larger than fabric holes of the narrow-pore construction; and an indexed fastener, including a fastener portion attached to one or both base ends of one or both of the inner panel or the outer panel, and an indexing portion attached to a portion of the fastener portion, positioned to identify to the user the location of the fastener portion, relative to other portions of the shield, and formed of a material markedly more firm than the outer layer, the inner layer, and the respirator by which a shield user can unambiguously discern the location of the indexing portion.