![A cardboard sculpture of a Lego character wearing a gas mask is displayed in 29-year-old artist Monami Ohno's room in Tokyo, Japan August 25, 2021. Picture taken August 25, 2021. REUTERS/Joseph Campbell A cardboard sculpture of a Lego character wearing a gas mask is displayed in 29-year-old artist Monami Ohno's room in Tokyo, Japan August 25, 2021. Picture taken August 25, 2021. REUTERS/Joseph Campbell](https://c8.alamy.com/comp/2GGCJ7A/a-cardboard-sculpture-of-a-lego-character-wearing-a-gas-mask-is-displayed-in-29-year-old-artist-monami-ohnos-room-in-tokyo-japan-august-25-2021-picture-taken-august-25-2021-reutersjoseph-campbell-2GGCJ7A.jpg)
A cardboard sculpture of a Lego character wearing a gas mask is displayed in 29-year-old artist Monami Ohno's room in Tokyo, Japan August 25, 2021. Picture taken August 25, 2021. REUTERS/Joseph Campbell
![WW2 US Navy Diaphragm Gas Mask Mark 4 MSA USN 1942 Mine Safety Appliances ND IV - Centex Tactical Gear WW2 US Navy Diaphragm Gas Mask Mark 4 MSA USN 1942 Mine Safety Appliances ND IV - Centex Tactical Gear](https://cdn11.bigcommerce.com/s-jkwzatsr05/images/stencil/1280x1280/products/306/1736/285079528009-5__79929.1671584527.jpg?c=2)
WW2 US Navy Diaphragm Gas Mask Mark 4 MSA USN 1942 Mine Safety Appliances ND IV - Centex Tactical Gear
![hello, I would want to show you all my new CO-1 mask. its size 2, in very good condition. came with a cardboard tin. Filter is not opened, made in 1954. The hello, I would want to show you all my new CO-1 mask. its size 2, in very good condition. came with a cardboard tin. Filter is not opened, made in 1954. The](https://preview.redd.it/hello-i-would-want-to-show-you-all-my-new-co-1-mask-its-v0-jw0dbgmi45r81.jpg?width=640&crop=smart&auto=webp&s=da27ca68a083b54d2f6b6596acfc2ceb5816edf1)
hello, I would want to show you all my new CO-1 mask. its size 2, in very good condition. came with a cardboard tin. Filter is not opened, made in 1954. The
![M. 1938 is a gas mask produced in Denmark from 1938-1941, this kit in specific would be issued to civilians the mask thread is 42mm and the kit includes the facepiece, cardboard M. 1938 is a gas mask produced in Denmark from 1938-1941, this kit in specific would be issued to civilians the mask thread is 42mm and the kit includes the facepiece, cardboard](https://i.redd.it/q0o51f9mctc51.jpg)
M. 1938 is a gas mask produced in Denmark from 1938-1941, this kit in specific would be issued to civilians the mask thread is 42mm and the kit includes the facepiece, cardboard
![Teenage Boy Wearing A Gas Mask Stock Photo - Download Image Now - Alley, Biochemical Weapon, Biochemistry - iStock Teenage Boy Wearing A Gas Mask Stock Photo - Download Image Now - Alley, Biochemical Weapon, Biochemistry - iStock](https://media.istockphoto.com/id/104288107/photo/teenage-boy-wearing-a-gas-mask.jpg?s=1024x1024&w=is&k=20&c=YVuwsrIwLdey5zuBbUTrsyoclUpFh8oRW13y4lE-Bhs=)
Teenage Boy Wearing A Gas Mask Stock Photo - Download Image Now - Alley, Biochemical Weapon, Biochemistry - iStock
![Child's Gas Mask, World War II, Original | Object Lessons - Conflict & Protest: 20th Century - Present Child's Gas Mask, World War II, Original | Object Lessons - Conflict & Protest: 20th Century - Present](https://www.iels.org/assets/19/A04036_l.1.jpg)