MASK Russian patent published in 2021 - IPC A62B18/02 

FIELD: medical equipment.

SUBSTANCE: mask belongs to medical equipment, particularly to equipment for individual human respiratory protection. The mask includes fasteners and a multilayer protective sheet based a horizontally oriented rectangle. The open longitudinal edges of the sheet are located inside the layers, one of the long edges of the sheet is formed by folding the sheet and the other one has a connecting seam, the mask has channels on the sides thereof formed by folding the sheet inward and connected to the central part of the sheet by a seam forming a free edge - side barrier, wherein fasteners in form of a strip with a fixating mechanism are installed in the channels.

EFFECT: proposed reusable mask effectively provides protection of the user, is easy to use, has a simple design and is adjustable by size.

4 cl, 2 dwg, 1 tbl