Smoke escape mask

Details Smoke escape mask Smoke escape mask

A - Human Necessities

62

B

A62B 18/08 (2006.01) A41D 13/11 (2006.01) A62B 18/02 (2006.01) A62B 23/02 (2006.01)

Patent

CA 2476426

A smoke mask (2) includes a generally planar breathing filter (8) sized to cover the nose and mouth of a user. The breathing filter (8) may be either dry or moistened, and has a filter efficiency of at least about 95%, meaning that at least about 95% of charge neutralized particles having an approximate size of 0.3 micrometers are removed from air flowing at a rate in a range of about 81 liters per minute to about 89 liters per minute, with a total filter load of at least about 200 milligrams of the particles. A transparent eye shield (306), which may be either a plastic film or goggles, is attached to the breathing filter (8). Pressure sensitive adhesive (12) is located on the peripheral edge of one surface of the mask structure for securing the mask to the face of the user.

L'invention prote sur un masque anti-fum~e (2) comprenant un filtre respiratoire g~n~ralement plan (8) dimensionn~ de sorte qu'il recouvre le nez et la bouche de l'utilisateur. Le filtre respiratoire (8) peut Útre soit sec, soit humide, et a un rendement d'au moins environ 95 %, ce qui signifie qu'au moins environ 95 % des particules neutralis~es par la charge et ayant une taille approximative de 0,3 microm­tre sont ~limin~es de l'air s'~coulant ~ une vitesse comprise entre environ 81 litres par minute et environ 89 litres par minute, avec une charge totale du filtre d'au moins environ 200 milligrammes de particules. Un protecteur oculaire transparent (306), pouvant Útre soit un film en plastique, soit des lunettes ~ coques, est fix~ au filtre respiratoire (8). Un adh~sif sensible ~ la pression (12) est plac~ sur le bord p~riph~rique d'une surface de la structure du masque afin de fixer le masque sur le visage de l'utilisateur.

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