Impregnation for respirator filters filled with active carbon

Details Impregnation for respirator filters filled with active carbon Impregnation for respirator filters filled with active carbon

1991-04-04

1992-05-19

Burr, Edgar S.

Surgery

Respiratory method or device

Means for removing substance from respiratory gas

12820528, A62B 710

Patent

active

051138565

ABSTRACT:
An impregnation for respirator filters, filled with active carbon, containing at least two of the known vanadium, copper, manganese, and zinc compounds, which occur as the vanadate, oxide, carbonate, or chloride, with addition of an oxo acid, shall be improved such that the stability of the respirator filters during storage will be improved. To accomplish this task, tungstic acid, molybdic acid, permanganic acid, stannic acid, or phosphoric acid is added.

REFERENCES:
patent: 4997803 (1991-03-01), van der Smissen et al.

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