This no-nonsense public information film imparts a direct message from the government about something that affected everybody's daily life in wartime - how to wear a gas mask correctly and the need to always have it with you. Precise instructions are imparted in a necessarily urgent manner, with no room for frills. 'Fillers' like this were used to plug holes in the cinema programme and were originally created by the Ministry of Information to quickly spread knowledge, civil defence intelligence or policies to the cinema-going public.
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