Who had gas masks in Britain?

During World War I and World War II, gas masks were issued to British soldiers, civilians, and children as a protective measure against chemical warfare. The government provided these masks to ensure public safety in the event of gas attacks, particularly during the Blitz in World War II. Additionally, various organizations and schools conducted drills to familiarize people with their use. The iconic "British Mk IV gas mask" became a symbol of the era.