Patent ID: 7725948

Claim:
A face mask, comprising: a body portion configured to be placed over a mouth and at least part of a nose of a user in order to isolate the mouth and the at least part of the nose of the user from the environment, wherein said body portion has a first layer with a plurality of folds forming a plurality of first creases and wherein said folds extend across the entire horizontal length of said first layer and are configured to unfold in order to extend the length of said first layer in the vertical direction, said folds in said first layer pointed in a first direction relative to said body portion, wherein said body portion has a second layer adjacent with said first layer and has a plurality of folds forming a plurality of second creases wherein said folds extend across the entire horizontal length of said second layer and are configured to unfold in order to extend the length of said second layer in the vertical direction, said folds in said second layer pointed in the same first direction as said folds in said first layer so as to unfold in the same direction as said folds in said first layer, wherein said first creases of said plurality of folds in said first layer are misaligned and unnested with said second creases of said plurality of folds in said second layer.