Face mask

Abstract

The face mask mainly includes a main piece. An upper portion of the main piece is bended backward at a first upper bending section, and then extended downward to form a first upper piece. A lower portion of the first upper piece is bended backward at a second upper bending section, and then extended upward to form a second upper piece. A lower portion of the main piece is similarly bended and extended to form a first lower piece and a second lower piece. A main piece height, a second upper piece height, and a second lower piece height, relative to a face mask height, are respectively between 42%˜64%, 42%˜48% and 31%˜39%. The main piece is vertically positioned towards a lower half of the face mask for a vertical distance, which is between 2% and 10% relative to the face mask height.

I claim: 
     
         1 . A face mask, comprising:
 a main piece having a main piece height where a first lateral line in the middle of main piece horizontally divides the main piece into an upper portion and a lower portion;   a first upper bending section having an inverted U-shaped cross-section where a front edge of the first upper bending section is joined to an upper edge of the main piece;   a first upper piece attached to the upper portion of a back side of the main piece where an upper edge of the first upper piece is joined to a back edge of the first upper bending section;   a second upper bending section having a U-shaped cross-section where a front edge of second upper bending section is joined to a lower edge of the first upper piece;   a second upper piece attached to a back side of the first upper piece where a lower edge of the second upper piece is joined to a back edge of the second upper bending section, and the second upper piece has a second upper piece height;   a first lower bending section having a U-shaped cross-section where a front edge of the first lower bending section is joined to a lower edge the main piece;   a first lower piece attached to the lower portion of the back side of the main piece where a lower edge of the first lower piece is joined to a back edge of the first lower bending section;   a second lower bending section having an inverted U-shaped cross-section where a front edge of second lower bending section is joined to an upper edge of the first lower piece; and   a second lower piece attached to a back side of the first lower piece where an upper edge of the second lowerpiece is joined to a back edge of the second lo bending section, and the second lower piece has a second lower piece height;   wherein the face mask has a lace mask height between an upper edge of the second upper piece and a lower edge of second lower piece; a second lateral line in the middle of face mask horizontally divides the face mask into an upper portion and a lower portion; the first lateral line and the second lateral line has a vertical distance in between;   relative to the face mask height, the main piece height is between 42% and 64%, the second upper piece height is between 42% and 48%, and the second lower piece height is between 31% and 39%;   the first lateral line is below the second lateral line; and   the vertical distance relative to the face mask height is between 2% and 10%.   
     
     
         2 . The face mask according to  claim 1 , wherein a gap between the second upper bending section and the second lower bending section has a height relative to face mask height is between 15% and 27%. 
     
     
         3 . The face mask according to  claim 2 , wherein the gap has a height relative to face mask height is between 19% and 21%. 
     
     
         4 . The face mask according to  claim 1 , wherein the mainpiece height relative to face mask height is between 52% and 64%. 
     
     
         5 . The face mask according to  claim 4 , wherein the main piece height relative to face mask height is between 62% and 64%. 
     
     
         6 . The face mask according to  claim 1 , wherein the second upper piece height relative to the face mask height is between 42% and 43%; and the second lower piece height relative to the face mask height is between 36% and 37%. 
     
     
         7 . The face mask according to  claim 1 , wherein the second upper piece height relative to the face mask height is between 47% and 48%; and the second lower piece height relative to the face mask height is between 31% and 32%. 
     
     
         8 . The face mask according to  claim 1 , wherein the second upper piece height relative to the face mask height is between 45% and 46%; and the second lower piece height relative to the face mask height is between 38% and 39%. 
     
     
         9 . The face mask according to  claim 1 , wherein an upper portion of the second upper piece is bended outward to form a third upper piece. 
     
     
         10 . The face mask according to  claim 1 , wherein a lower portion of the second lower piece is bended forward to form a third lower piece.