Gas Mask Sizing
Soviet Gas Mask Size Chart
Measure head circumference around the forehead, above the ears, and around the back of the head.
| Mask Size | Label | Head Circumference (cm) | Head Circumference (in) | Fit |
|---|---|---|---|---|
| 0 | XS | Up to 60 cm | Up to 23.6 in | Extra Small |
| 1 | S | 60 – 63 cm | 23.6 – 24.8 in | Small |
| 2 | M | 63 – 65.5 cm | 24.8 – 25.8 in | Medium |
| 3 | L | 65.5 – 68 cm | 25.8 – 26.8 in | Large |
Vintage military sizing. If between sizes, choose the larger size.