The Light Anti-Gas Respirator MK II (LAG MK II) is a British gas mask designed during the Second World War by Avon Rubber, first issued in 1943. The LAG was designed to remove the cumbersome hose and filter of the earlier British army gas masks,instead using a 60mm threaded filter attaching directly to the left cheek.

History and UseEdit

The Light Anti-gas respirator was first trialled in North Africa in 1942 by selected units.

The LAG MK II was first used operationally by paratroopers and other assault units on the 5-6th of June 1944 with the Allied invasion of Normandy.

This mask not only weighed less than the earlier models, but also enabled easier movement because of the elimination of the large filter and hose.


The mask is made of a thick rubber with a six point elastic strap harness to connect the mask to the wearer. It features two large eye lenses made of glass, these appear to be exactly the same as the older model lenses. The respirator makes use of a large voice diaphragm located on the mouth area, this projects the users voice fairly well.

Post warEdit

Many of the LAG MK II's were given to the Danish army post world war two, and most of the MK II's available of the surplus market will thus have Danish markings stamped on them.

During the 1950s, modified LAGs [1] were produced. The exact purpose and modifications done to these LAGs is unknown.

Gallery Edit

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