Disposable respirator

A - Human Necessities – 41 – D

Patent

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Details

A41D 13/11 (2006.01)

Patent

CA 2410260

A disposable respirator (10) including peripheral bindings of filter material providing breathable filter protection along the periphery of the respirator, portions of that periphery (34, 36) being set against the face of the wearer. The respirator further includes filter material (32) pleated a plurality of times and set away from the face of the wearer by lengths of ultrasonically welded or heat sealed side welds (16, 18). The additional pleats advantageously provide high filtering surface area and a low filtering load across the periphery and pocket of the respirator. The result is superior breathability and comfort.

L'invention concerne un masque filtrant jetable comprenant des bordures périphériques fabriquées à partir d'un matériau filtrant permettant une protection filtrante perméable à l'air, disposées le long de la périphérie du filtre; des portions de cette périphérie étant placées contre le visage de l'utilisateur. Le masque comprend également un matériau filtrant présentant une multitude de plis et placé à distance du visage de l'utilisateur au moyen de longueurs de soudures latérales scellées à chaud ou soudées. Des plis supplémentaires permettent de fournir une grande surface de filtration et une charge de filtration faible à travers la périphérie et la poche du masque. Ainsi, le masque permet une meilleure respirabilité et un plus grand confort.

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