BG-4 features an operating period of four hours in accordance with NIOSH CFR 30 and EN 145. The positive pressure in the entire breathing circuit makes the BG-4 particularly suitable for long-term missions in a toxic environment. Modern materials and technologies plus microelectronics have combined to create a unit with a relatively low weight The ergonomically shaped carrying frame, in conjunction with the new comfort harness system ensure very good wearing comfort. Breathing comfort is the result of a low resistance CO2 absorber and an integrated air cooling system. Designed for easy maintenance and service, the BG-4 can be readily cleaned, tested and prepared for re-use once the mision has been completed. Ship wt. 32 lbs.

• Designed for mine rescue, tunneling, firefighting and other hazardous area operations
• Up to 4 hours of oxygen breathing gas protection
• Positive pressure protection
• Lower breathing resistance Lower inhalation temperature
• Monitron digital display pressure gauge
• Hi-rise search and rescue
• Subway search and rescue
• NIOSH, MSHA Approvals