FIELD: personal demand items.
SUBSTANCE: filtering face mask respirator comprising a fixing assembly and a mask body comprising a filter structure comprising one or more folds and a welded indicating component. The welded indicating component is disposed in one or more folds in, at least, partially invisible arrangement, when the said fold is folded, and the said indicating component is fully visible, when the said fold is folded such that the fully visible indicating component indicates that the mask body is in the decomposed state. The indicating component also includes welding lines extended perpendicularly through the fold to increase resistance to crushing.
EFFECT: increased protection.
16 cl, 6 dwg
