Chemical cartridge for protective respiratory mask

Details Chemical cartridge for protective respiratory mask Chemical cartridge for protective respiratory mask

1990-08-20

1992-02-25

Burr, Edgar S.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820528, 12820523, A62B 710

Patent

active

050904078

ABSTRACT:
A chemical cartridge for protective respiratory mask comprising a separate active filter section and main filter section. The active filter section is formed of an absorbent medium impregnated with a reagent capable to capture and derive a target toxic pollutant having a chemically active fuction into an inert, non-volatile and non-toxic matter as air is inhaled. This active filter section is permeable to other types of pollutant. The main filter section includes activated carbon, or any other equivalent filtering material, and is positioned downstream the active filter section. In operation, the target pollutant is captured and derived into inert, non-volatile and non-toxic matter by the active filter section, while the other types of pollutants pass through this active filter section and are captured by the main filter section.

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"Protection of the Respiratory Organs and Skin of Diisocyante Workers", O. K. Ardasheva, V. I. Astrakhantseva, V. I. Tsivtsina, Institute of Industrial Hygiene and Occupational Diseases, Gor'kiy, pp. 92-95, 1964.

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