![The British Civilian Duty Respirator was issued to civilians and civil defense personnel during the Second World War. Oddly enough, while the world was switching away from flutter-style valves as a whole, The British Civilian Duty Respirator was issued to civilians and civil defense personnel during the Second World War. Oddly enough, while the world was switching away from flutter-style valves as a whole,](https://i.redd.it/jwebjzc7tnf31.jpg)
The British Civilian Duty Respirator was issued to civilians and civil defense personnel during the Second World War. Oddly enough, while the world was switching away from flutter-style valves as a whole,
![BRITISH WW11 CIVILIAN DUTY GAS MASK BCD ST MASK 1942 - SAME TYPE USED BY SID WILSON OF SLIPKNOT FAME - WARSTUFF.COM BRITISH WW11 CIVILIAN DUTY GAS MASK BCD ST MASK 1942 - SAME TYPE USED BY SID WILSON OF SLIPKNOT FAME - WARSTUFF.COM](https://www.warstuff.com/wp-content/uploads/2021/08/1-0470e.jpg)
BRITISH WW11 CIVILIAN DUTY GAS MASK BCD ST MASK 1942 - SAME TYPE USED BY SID WILSON OF SLIPKNOT FAME - WARSTUFF.COM
![Image of GAS MASKS, 1938. - British Newspaper Advertisement, 1938, Promoting Gas Masks For Civilian Use In Response To Enemy Air Raids In The Event Of War. From Granger - Historical Picture Archive Image of GAS MASKS, 1938. - British Newspaper Advertisement, 1938, Promoting Gas Masks For Civilian Use In Response To Enemy Air Raids In The Event Of War. From Granger - Historical Picture Archive](https://www.granger.com/wmpix/med/pub/0080403-GAS-MASKS-1938-British-newspaper-advertisement-1938-promoting-gas-masks-for-civilian-use-in-response-to-enemy-air-raids-in-the-event-of-war.jpg)