![File:Two Chinese soldiers wearing gas masks at Pihu Military training centre in Fujian province, China 1944. (47218963951).jpg - Wikimedia Commons File:Two Chinese soldiers wearing gas masks at Pihu Military training centre in Fujian province, China 1944. (47218963951).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/0/03/Two_Chinese_soldiers_wearing_gas_masks_at_Pihu_Military_training_centre_in_Fujian_province%2C_China_1944._%2847218963951%29.jpg)
File:Two Chinese soldiers wearing gas masks at Pihu Military training centre in Fujian province, China 1944. (47218963951).jpg - Wikimedia Commons
![French Military Gas Mask Designed To Protect Ears. June 1937. Csu ArchivesEverett Collection History - Item # VAREVCCSUA001CS503 - Posterazzi French Military Gas Mask Designed To Protect Ears. June 1937. Csu ArchivesEverett Collection History - Item # VAREVCCSUA001CS503 - Posterazzi](https://cdn11.bigcommerce.com/s-yzgoj/images/stencil/1280x1280/products/1960261/4883180/apidyxyhj__57440.1626427521.jpg?c=2)
French Military Gas Mask Designed To Protect Ears. June 1937. Csu ArchivesEverett Collection History - Item # VAREVCCSUA001CS503 - Posterazzi
![I have two gas masks and I was wondering the history behind them. The one on the right is made by Chema is a size 2 and has the date 1937 on I have two gas masks and I was wondering the history behind them. The one on the right is made by Chema is a size 2 and has the date 1937 on](https://preview.redd.it/ubwj0oqnsi831.jpg?width=640&crop=smart&auto=webp&s=07bcfc5dfd010e8db6897043ffbda17633e47eba)
I have two gas masks and I was wondering the history behind them. The one on the right is made by Chema is a size 2 and has the date 1937 on
![U.S. Soldier Wearing Gas Mask In Vietnam. Ca. Jan. 1968. Csu ArchivesEverett Collection History - Item # VAREVCCSUA001CS499 - Posterazzi U.S. Soldier Wearing Gas Mask In Vietnam. Ca. Jan. 1968. Csu ArchivesEverett Collection History - Item # VAREVCCSUA001CS499 - Posterazzi](https://cdn11.bigcommerce.com/s-yzgoj/images/stencil/1280x1280/products/1878960/3880668/apic1sin5__29341.1626427790.jpg?c=2)