- Gas mask GM31 (Shigematsu works / Shigematsu).
- It is a single-type canisters placed in front.
- General size is M.
- In addition to wearing soft touch and good adhesion.
- Gas masks in the lightest. (Exhaling only 75 g).
- Is a hazardous substance does not occur burning, environmentally-friendly TPE material.
- TPE：Thermoplastic Elastomer thermoplastic elastomers (elastomer is a polymer substances room temperature near the rubber elastic. )
- One-touch type mask can be attached easily.
- The canisters directly into mask.
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