MSA All-Vision Chemical Cartridge Respirator
The MSA All-Vision Gas Mask was made for a variety of applications, including law enforcement and industrial use. This configuration was called the All-Vision Chemical Cartridge Respirator. It had 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 1969.
Date stamp inside mask "68/69/70"
Instruction and date stamps on head harness "FRONT STRAP TO BE PULLED LAST" "69/70/71"
Stamp on tip of head strap "FRONT"
Stamp on tip of head strap "SIDE"
Stamp on tip of head strap "NECK"
Manufacturer stamp on metal clamp "Sure-Tite ALL STAINLESS" "48 2"
Manufacturer stamp on clamp fastener "WHITTEK MFG. CO. CHI. U.S.A."
Filter sleeve bottom view
Pre-filter top view
Pre-filter bottom view
Pre-filter side view
Filter top view
Filter stamp bottom view "ACID GASES AND ORGANIC VAPORS"
Filter stamp side view "AIR FLOW" "CARTRIDGE ADSORBENT, M2" "7711"
Bag for MSA Chemical Cartridge Respirator