IOW College Library Resources

Gas mask evolution

Medium Periodical Article
Medium - part of - (Periodical Copy) (Number) 188 (Date) April
Medium (Periodical) How it works.
Classif 600 HOW
Subject History and Technology
Page 38-41
Authors Harvey, Ailsa
Contents

What prompted the invention of a mask that could provide clean air in polluted and poisonous enviornments?

Keywords
Gas masks     Historical background     WW1