Gas mask filter canister

Details Gas mask filter canister Gas mask filter canister

A - Human Necessities

62

B

A62B 23/02 (2006.01)

Patent

CA 2483560

A filter for a gas mask has an elliptical or circular, convex shape to conform to the curvature of the wearer's face, or a planar shape. The filter comprises a double particulate filter element and a double adsorption filter element configured for axial airflow therethrough with a bifurcated flow pattern. The adsorption filter element comprises a granulated charcoal, a composite material having carbon particles combined with binder particles, or an immobilized bed of charcoal granules and EVA-coated fibers.

L'invention concerne un filtre conçu pour un masque à gaz et présentant une forme convexe, elliptique ou circulaire destinée à épouser les courbes du visage de l'utilisateur, ou une forme plane. Ce filtre comprend un élément de filtrage double à particules ainsi qu'un élément de filtrage double d'adsorption configurés pour être traversés par un écoulement d'air axial à configuration bifurquée. L'élément de filtrage d'adsorption comprend des granulés de charbon, un matériau composite contenant des particules de carbone combinées à des particules de liant, ou un lit immobile de granulés de charbon et de fibres enduites d'EVA.

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