Forsheda F2 A4 Gas Mask review and test

Testing and reviewing the Swedish Forsheda A4 gas mask, the civilian variant of the F2 military gas mask. The F2 A4 is a very comfortable full face respirator which bears a lot of similarities to the Avon S10, these Swedish gas masks are starting to appear on the UK surplus market for around £50-80, however, check the date stamps carefully if you order one, as some of these masks are older than the advertised dates. I test the mask against aerosols with first a Scott Aerosol/Particulate filter and then an A