a body having a perimeter defined at least partially by an upper edge, a lower edge, a left edge, and a right edge, wherein the body is formed of a flexible material, wherein the body includes a diamond-shaped center segment having a vertical height extending from the upper edge to the lower edge, wherein the vertical height coincides with an overall vertical height of the body, wherein the body further includes an upper left segment, a lower left segment, an upper right segment, and a lower right segment connected to sides of the diamond-shaped center segment, wherein the upper left and the lower left segments extend outward to the left edge at an angle and the upper right and lower right segments extend outward to the right edge at the angle, wherein the upper left segment is spatially separated from the lower left segment, and wherein the upper right segment is spatially separated from the lower right segment; and

at least one strap coupled to the left and right edges of the body that is and configured to attach the body to a person's head with the body positioned over the person's nose and mouth.