Strapless respiratory face mask
AssigneeMohamed Ali Barakat
InventorsMohamed Ali Barakat, Gianluca Brotto, Rainer Link, Gianfranco Palumbo
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Abstract
The present invention relates to face masks to control and improve the quality of inhaled air. Claimed and described is a respiratory face mask comprising a flange and a filter layer, the flange having an inner periphery and an outer periphery and a first and a second width measured perpendicular to the inner periphery between the inner periphery and the outer periphery, characterised in that the first width is greater than the second width. Preferably, such face masks are strapless and rely on a hydrogel adhesive for attachment and sealing. Further claimed and described is an improved cover layer for an adhesive of such a face mask.
Claims16
A respiratory face mask comprising:
- a flange adapted to fit on a face of a wearer and having an inner periphery and an outer periphery, said flange being symmetrical about a longitudinal axis defining left and right halves of the mask, said flange being wider at 0°, 90° and 180° relative to a central point on the axis than in sectors extending from 40° to 60° and 110° to 130°;
- said flange having a wearer facing side and a garment facing side, said wearer facing side having a layer of a hydrogel adhesive having a dry initial peel strength (PDI) and a greasy initial peel strength (PGI), wherein a ratio of PDI to PGI is from 1:1 to 1.0:0.2;
- and
- an air control module carried by said flange.
Dependencies are inferred from the claim text.