Avon Protection now manufactures the GSR from its factory in Melksham after winning the in-service support contract in 2019.

British gas masks from mid 1920s to 1960s were also known as General Service Respirator.

Design work started in 2000, and from the outset the GSR was designed to function better than the S10 in "hot, high and dry" environments whilst still keeping the S10's qualities in the temperate environments of Europe for which it was originally intended.

[citation needed] The respirator was officially adopted into service with the Armed Forces on 26 August 2010, and training started during 2011, with British Forces Germany being the first to field them.

[1] The new respirator, produced by Scott Health and Safety Ltd, reportedly provides a significantly higher level of protection.