Filter mask

A - Human Necessities – 62 – B

Patent

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Details

A62B 23/02 (2006.01) A62B 18/08 (2006.01)

Patent

CA 2390222

A filter mask (10) is provided for use in environments of smoke and toxic gas which includes a filter element (12) having a filling of shiftable bodies (24) coated with a flowable, aloe vera extract having a gel-like viscosity and a retainer (14) for holding the filter element (12) over the mouth and nose of the wearer. The coating has a pH level which is alkaline which aids in the reduction of toxic gases such as hydrogen cyanide, hydrogen chloride and acrolein inhaled by the wearer. The filter element (12) is preferably replacably mounted to the retainer (14) and may be provided as a bag-like flexible fabric container adapted to shift so as to conform to the face of the wearer. The filter element (12) itself is adaptable to a variety of different uses for removing smoke particulates and toxic gases from air flowing therethrough.

L'invention concerne un masque filtrant, utile dans des environnements de fumée et de gaz toxiques, et comprenant un élément filtrant comportant une garniture composée de corps pouvant se décaler et revêtus d'un extrait fluide d'aloès ordinaire à viscosité du type gel, ainsi que des moyens de retenue servant à retenir l'élément filtrant sur la bouche et le nez de l'utilisateur. Le revêtement possède un niveau de pH alcalin servant à réduire les gaz toxiques tels que le cyanure d'hydrogène, le chlorure d'hydrogène et l'acroléine inhalés par l'utilisateur. De préférence, l'élément filtrant est monté mobile sur les moyens de retenue et il peut être constitué comme un contenant en tissu, souple, du type poche, conçu pour pouvoir se décaler de manière à épouser la face de l'utilisateur. Cet élément filtrant peut s'adapter à un plusieurs utilisations différentes, aux fins d'élimination des particules de fumée et des gaz toxiques, à partir de l'air circulant à travers cet élément filtrant.

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