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Mining Project: Breathing Air Supplies Research
Keywords: Closed circuit breathing apparatus Equipment design Evacuation Self contained breathing apparatus
This page is archived for historical purposes and is no longer being maintained or updated.
Principal Investigator
Rohan Fernando -  Request informationStart Date
10/1/2015End Date
9/30/2018Objective
To improve breathing air supplies by conducting a development program; exploring and identifying technologies in other fields that may be adapted; designing, developing, and producing technology demonstrators; validating these demonstrators through theoretical and experimental means; and making available information and hardware to assist breathing air supply manufacturers in producing certified products and systems for use in underground mining.Topic Area
Rescue Technologies and Training
Research Summary

Mining disasters have highlighted deficiencies in breathing air supply (BAS) technologies that are available post-disaster for escaping miners. The MINER Act of 2006 specifically identifies oxygen supplies as an area that needs more attention and directs research to be conducted to yield solutions. Breathing air supplies for underground mining refer to a range of devices and systems that offer respiratory protection to miners in the event of an emergency—namely escape devices and systems, rescue breathing apparatus, and gas supplies for refuge alternatives.
The research aims of this BAS project were as follows:
Understand the current state of BAS technologies in mining.
Explore technologies relevant to BAS such as efficiency improvements and breathing gas chemicals.
Study technologies implemented by other sectors to generate breathing air.
Identify technologies useful for BAS and adopt applicable technologies for BAS.
Focus on critical component development for seamless changeover from one breathing apparatus to another—i.e., ease of donning, comfort in use and effective communications—that can be used in current and next-generation breathing apparatus.
Develop the next-generation BAS by addressing the overall efficiency of self-contained breathing apparatus designs; designing self-contained self-rescuers (SCSRs) or closed-circuit escape respirators (CCERs), closed-circuit oxygen breathing apparatus (CCBAs) and open-circuit self-contained breathing apparatus (SCBAs); improving compressed air and developing liquid-air refill stations; optimizing open-circuit SCBA for mine escape use.
Address and incorporate human factors and ergonomics considerations towards wearable and useable next-generation designs of BAS.
Understand and address relevant standards, approvals, and policy implications.
Keep in view training considerations for the next generation of BAS.While meeting the MINER Act requirement, this project research developed improved breathing protection technology for the mining community in the form of technology demonstrators and prototype systems using state-of-the-art materials and techniques. Usability studies conducted on these systems and the developed prototypes—including detailed information from project reports, research papers, test data, drawings/solid models, and technical data packages—will be disseminated and will allow for a path to commercialization.


See Also
BG 4 Breathing Apparatus Training Software Released
Development of both a Dockable and Hybrid Person-Wearable Self-Contained Self-Rescuer
Development of Components for Breathing Escape Apparatus (DSOV)
Development of Components for Breathing Escape Apparatus (DSOV/HMC)
Development of Components for Breathing Escape Apparatus (DSOV/HMC/VHPC)
Expectations Training for Miners using Self-Contained Self-Rescuers in Escape from Underground Coal Mines
Probability of Making a Successful Mine Escape While Wearing a Self-Contained Self-Rescuer
Probability of Making a Successful Mine Escape While Wearing a Self-Contained Self-Rescuer - A Computer Simulation
Smart Escape SCBA
Transfer of Self-Contained Self-Rescuer Donning Skills Under Similar Conditions of Practice: The Draeger OXY-SR60B and the CSE SR-100
Page last reviewed: March 8, 2019
Page last updated: March 30, 2017
Content source: National Institute for Occupational Safety and Health, Mining Program
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