| 摘要 |
A face mask comprising a pleated laminate having means to secure said laminate over the nose and mouth of the wearer, said laminate comprising a first outer layer of heat sealable facing material, a second inner layer of filtration media, and a third innermost layer of heat sealable facing material, the laminate being folded to create one pleat therein that extends across the entire laminate, each end of the pleat being secured together at the edges of the laminate and the folded edge of the pleat being heat sealed along substantially its entire length securing together the three layers of laminate, and reinforcing the pleat edge such that when the pleat is open, the reinforced pleat edge maintains the laminate away from the mouth and nose of the wearer when worn. |
