EXPANDABLE FACE MASK WITH SUPPORTING NET Russian patent published in 2013 - IPC A62B18/02 

Abstract RU 2474446 C1

FIELD: medicine.

SUBSTANCE: present invention is applied for respiratory protection from airborne particles and/or off-odour or toxic gases. A folded flat face mask is cup-shaped when expanded to fit over user's mouth and nose. The mask comprises a porous layer and a supporting net. The porous layer comprises at least a first primary surface being extrorse when the mask is cup-shaped. The porous layer which the supporting net is laminated to comprises at least one fold and thereby may be opened from the flat folded position to the cup shape by at least partial expansion of at least one fold, and may be folded back to the flat position. The supporting net is arranged on an external surface of the face mask when the mask is cup-shaped.

EFFECT: higher protection effectiveness.

23 cl, 8 dwg

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RU 2 474 446 C1

Authors

Daffi Din R.

Dates

2013-02-10Published

2009-12-02Filed