My last American Science & Surplus catalog is showing a box of individually packaged disposable face masks, 50 masks for $12.50 (+ shpg).
These are the folded kind, not the molded kind (although they have those, too). Description: "Extra-good quality disposable masks: Latex- and fiberglass-free, with a PVC nosepiece; 99% bacteriological and particulate filtration efficiency and fluid resistance. Measure 7" x 3.75" with elastic earstraps and 4-fold, cone-shape construction. Pacaged individually."
American Science & Surplus folded face mask http://www.sciplus.com/search.cfm?utm_so...amp;btnHand.y=0Sue
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