1. Product material: High-performance thermoplastic elastomer material

2. Product certification: The product has passed LA certification

3. Implementation standard: GB2626-2019

4. Scope of use: Applicable to petroleum, chemical, municipal construction, construction, electricity, coal mines, and any other industries and places that are harmful to breathing. It cannot be used in environments with oxygen content below 18% and environments that can immediately threaten health or life.