Scott General Service Respirator

Scott General Service Respirator or GSR, produced under license for the British army and is currently replacing the Avon S10 from service. The GSR takes two clip filters on each side of the mask and has a single visor rather than two lenses. It also contains a drinking tube.

British Light-Anti-Gas Respirator Mark 2

The first mass issued British gas mask to use replaceable filters.
It takes 60mm filters on the left cheek of the mask.
This mask was developed from the prototype Mark 1 LAG respirator, and the Mark 3 LAG design was used by Canada to create the C3 Gas mask.

British Mark 5 Respirator

Very similar to the Mark 4 but with a rubber tab that a microphone could be inserted into.
No canvas lining on this mask.
The Mark 5 was used in the 1973 Romero film "The Crazies"

British Mark 4 Respirator

British World War 2 Mark 4 respirator.
Features a box filter and a canvas lining on the rubber.