Antiviral and antibacterial respirator mask

Details Antiviral and antibacterial respirator mask Antiviral and antibacterial respirator mask

A - Human Necessities

62

B

A62B 7/10 (2006.01) A62B 18/02 (2006.01) A62B 19/00 (2006.01) A62B 23/02 (2006.01)

Patent

CA 2471429

The invention provides a gas mask (10) comprising a face piece including a transparent eye covering (16), and including a space (18) to allow air to circulate around the nose and mouth of a wearer, and having an airtight seal to prevent contaminated air from entering the gas mask; a filtration apparatus (22) containing an active stage and a passive stage, the passive stage for filtering out particles above a predetermined size, and including adsorbent media for removing toxic or harmful substances and fluids from the contaminated air, the active stage containing at least one agent to kill ambient bacteria and viruses; an intake vent (22) permitting contaminated air to enter into the filtration system; at least one passageway (20) connecting the filtration apparatus to the space around the nose and mouth of the wearer; and an exhalation port through which exhaled air may be expelled.

L'invention concerne un masque à gaz (10) composé d'un élément facial comportant un couvre-yeux transparent (16), un espace (18) permettant à l'air de circuler autour du nez et de la bouche de l'utilisateur, et un joint étanche à l'air destiné à empêcher l'air contaminé de pénétrer dans le masque ; d'un système de filtrage (22) comportant un étage actif et un étage passif, l'étage passif servant à filtrer des particules de dimensions supérieures à un seuil prédéterminé et contenant un agent adsorbant destiné à éliminer des substances et fluides toxiques ou nocifs de l'air contaminé, et l'étage actif contenant au moins un agent destiné à détruire les bactéries et virus ambiants ; d'au moins un passage (20) connectant le dispositif de filtrage à l'espace situé autour du nez et de la bouche de l'utilisateur ; et, d'un port d'expiration au travers duquel de l'air expiré peut être évacué.

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