If you lived in Britain during World War II, you would've received a standard issue gas mask as a civilian. The UK was rightfully worried that innocent people would die due to mustard gas dropped during air raids.
So everyone received a gas mask in case of an attack. They smelled badly and made it difficult to breathe - in fact, there were special masks for babies and children. Luckily, the British never had to use these masks, as gas was never dropped on them. It was still smart to issue them though. Most photos courtesy of Mandy Barrow.
Standard issue gas mask
The Hitler warning
“Gas masks were standard issue for British civilians in WW2.”