FIELD: respiratory protection.
SUBSTANCE: invention relates to a device for respiratory protection in a climatically unfavorable conditions with an admixture of sand-dust, construction-cement, air-aerosol, smoky-ash suspensions, as well as from spores of fungi and mold, pollen and viral infections in household, construction industrial, medico-social and military-army environments with the exclusion of fogging of glasses and / or anti-fog (anti-fock effect) and preservation of freshness even with intense breathing, as well as for phytoinhalation. A protective mask with an insert contains a rectangular fabric of a given size, looped at the ends of a zigzag seam, made of any known filtering nonwoven material corresponding to the characteristics, for example, Spandbond, with the possibility of forming four-layer mirrored accordion-like folds, three upper for the nose and two lower for the chin, from the center to the periphery, while the folds can be made the same along the width of the wings and are laid like an accordion along the edges of the whole, approximately 1/3 part and / or share of the front side of the filtering material web and on the flanks of which they can be securely fixed with stitches formed by the ends of the elastic behind-the-ear loops, while the wings of the first folds to the front side of the filtering material web are mutually arranged to each other with a fastening seam to avoid mechanical opening, as well as for stable self-formation of the respiratory unit, as well as for the formation of a volumetric air a stuffy chamber and/or pocket, as well as clamps and/or for placement under them with subsequent holding of the liner, while the liner itself is made of replaceable rectangular shape from a known filter material, for example meltblown, and includes impregnation, for example menthol, to ensure lightness and freshness of breath.
EFFECT: technical result consists in creating a protective mask with an insert without the use of flexible inserts, as well as without the use of glue and/or welding, and/or any other seams that emit harmful components into the environment, with an effective perimeter fit over the entire face for the purpose of operational protection of the breathing organs.
10 cl, 13 dwg
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Authors
Dates
2021-10-01—Published
2020-06-25—Filed