FIELD: satisfaction of human vital needs.
SUBSTANCE: face mask comprises a mask body, a mask fixation device on the face, a mask power frame, mask buccal projections, wherein the middle vertically convex connecting suture forms the convexity of the front wall of the mask and the protrusion of the fabric outward, which is formed by stitching the vertically convex connecting suture in the region of the upper edge of the mask, wherein the upper edge of the mask is compacted with a double layer of fabric and is located on the upper lip, at that, the chin strips are located at the level of the chin of the user of the mask at the same distance on both sides from the middle vertically convex connecting suture and the ends of the chin strips are fixed on the inner surface of the mask at a distance greater than the length of the strips themselves, to create a convex front wall of the mask between the lower edge of the lip upper edge of the mask and the attachment points of the chin strips to the inner surface of the mask, which, when the mask is put on the face, is spaced from the front surface of the face to form an under-mask space with an open lower edge for diverting air from the under-mask space downwards to the outside.
EFFECT: described is an open-type face mask.
3 cl, 6 dwg
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Authors
Dates
2022-03-14—Published
2021-10-13—Filed