![I have recently inherited this WW2 US gas mask. I believe it to possibly be an M3. Thoughts? : r/gasmasks I have recently inherited this WW2 US gas mask. I believe it to possibly be an M3. Thoughts? : r/gasmasks](https://preview.redd.it/ly6kirnovj471.jpg?width=640&crop=smart&auto=webp&s=081810ca70372535fa47dddb750c3a84a248a50b)
I have recently inherited this WW2 US gas mask. I believe it to possibly be an M3. Thoughts? : r/gasmasks
U.S. Army on Twitter: "Who knows how long you have to put on a gas mask? @200thMPC #USArmy photo by Sgt. Jessica Forester https://t.co/yjnFxUsBYQ" / Twitter
![U.S. Army M45 Chemical Warfare Gas Mask Kit 4240-01-447-6989 -Size XS/ – Military Steals and Surplus U.S. Army M45 Chemical Warfare Gas Mask Kit 4240-01-447-6989 -Size XS/ – Military Steals and Surplus](http://cdn.shopify.com/s/files/1/0739/2715/products/7664896d-dd77-581b-b950-854cf47d4f8f_1200x1200.jpg?v=1670340173)
U.S. Army M45 Chemical Warfare Gas Mask Kit 4240-01-447-6989 -Size XS/ – Military Steals and Surplus
![Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 194 – International Military Antiques Original U.S. WWII M3A1 Diaphragm Gas Mask with MIXA2 Filter dated 194 – International Military Antiques](https://cdn.shopify.com/s/files/1/1524/1342/products/ONSV9269__02.jpg?v=1615615525)