
30 Minutes Reusable Respiratory Protection PPE, Isolated Compressed Oxygen Self-Rescuer. 30 Minutes Protection Duration: Provides rated protective time of at least 30 minutes in emergency situations. Reusable Compressed Oxygen System: Utilizes isolated compressed oxygen in a closed circuit for clean air supply. MA Certified Safety Standard: Holds MA certificate No. MLA180011 for underground mining safety compliance. Multiple Oxygen Supply Modes: Features quantitative supply, demand valve, and manual switch options. Suitable for Confined Spaces: Designed for use in underground environments and areas with toxic gases. OEM and ODM Services Available: Customization options available for packaging and branding requirements. Compact and Lightweight Design: Dimensions 220x183x102mm with a weight of only 2.0kg for portability. High-Pressure Oxygen Storage: Oxygen bottle filling pressure ranges from 19 to 21 MPa with 60L capacity.