MSA All-Vision Diaphragm Chemical Cartridge Respirator

The MSA All-Vision Gas Mask was made for a variety of applications, including law enforcement and industrial use.  This All-Vision Chemical Cartridge Respirator featured a central speech diaphragm, two cheek exhale valves and a filter canister attached directly to the chin to protect against tear gas.  This example was made by Mine Safety Appliances in 1971.

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Bag for MSA All-Service Chemical Cartridge Respirator