FIELD: individual protection means.
SUBSTANCE: personal respiratory protective device, made in the form of a mask comprising an upper section, a central section and a lower section. Central section is separated from the upper and lower sections respectively by first and second folds, seams, welding lines or adhesive bonding so that the device can be folded along the first and second folds, seams, welding lines or adhesive bonding lines to a flat state in which it is stored, and is disclosed to form a cup-shaped air chamber disposed over the nose and mouth of the wearer. Lower section includes a stiffening strength segment that has a longitudinal crease line, wherein the stiffening force segment is folded along the longitudinal crease line when the device is opened.
EFFECT: individual respiratory protection device has been proposed.
12 cl, 14 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
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|
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|
RU2443442C1 |
