I use a yellow cartridge for my respirator while acid gas, is that the right cartridge?

Question:

Answer: Yes, the yellow cartridge is good for both organic vapors and acid gases. OSHA requires manufacturers to color-code cartridges according to the substances they rebuff. OSHA's color scheme is as follows: Black -- organic vapors White -- acid gas Green -- ammonia gas Blue -- carbon monoxide Purple -- radioactive materials Yellow -- mixture of acid gases and organic vapors OSHA combines colors for other contaminant combinations. A black cartridge with a gray pre-filter, for instance, protects against particulates and organic vapors. Obviously, this black-and-gray job should be a staple item in a contractor's supply room.

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