Respiratory Protection Resources for Mine Workers

NIOSH/MSHA Investigation of CSE SR 100 Starter Oxygen Assembly

Long Term Field Evaluations (LTFE)

The Long-Term Field Evaluation (LTFE) program for self-contained self-rescuers (SCSRs) for miners was initiated more than 20 years ago by the U.S. Bureau of Mines. The objective for the LTFE program is to obtain data to determine the expected performance characteristics of SCSRs used in the mining industry. LTFE program results based on scientific principles can provide useful information to monitor expected SCSR performance and assess possible degradation due to the physical stresses of in-mine use. Of utmost concern is the successful performance of any SCSR that passes its inspection criteria specified by the manufacturer. It is such apparatus that must be relied upon in an emergency.

PPE Case – Point-of-Use Assessment for Self-Contained Self-Rescuers Randomly Sampled from Mining Districts: First Phase pdf icon[PDF – 1 MB]
The National Personal Protective Technology Laboratory (NPPTL) of the National Institute for Occupational Safety and Health (NIOSH) has undertaken a study to evaluate the long-term field performance and reliability of self-contained self-rescuers (SCSRs) deployed in U.S. underground coal mines in accordance with the use and location requirements of Title 30 Code of Federal Regulations (30 CFR) Part 75.1714. This ongoing project provides visual inspection data and performance data on field deployed SCSRs. (2017)

PPE Case – Point-of-Use Assessment for Self-Contained Self-Rescuers Randomly Sampled from Mining Districts: Second Phase pdf icon[PDF – 683 KB]
The National Personal Protective Technology Laboratory (NPPTL)1, a laboratory in the National Institute for Occupational Safety and Health (NIOSH), and the Mine Safety and Health Administration (MSHA) in Pittsburgh, Pennsylvania have undertaken a study to evaluate the long-term field performance and reliability of self-contained self-rescuer (SCSR) units deployed in U.S. underground coal mines in accordance with federal regulation 30 CFR2 § 75.1714. This ongoing project provides performance, reliability, and user maintenance compliance data on field deployed SCSR units. (2017)

PPE CASE – Point-of-Use Assessment for Self-Contained Self-Rescuers Randomly Sampled from Mining Districts: Third Phase
An ongoing Long-Term Field Evaluation (LTFE) study, carried out jointly by the National Personal Protective Technology Laboratory (NPPTL), a laboratory in the National Institute for Occupational Safety and Health (NIOSH) and the Mine Safety and Health Administration (MSHA), evaluates the long-term field performance and reliability of self-contained self-rescuer (SCSR) units deployed in U.S. underground coal mines. The LTFE study provides performance, reliability, and user maintenance compliance data on field-deployed SCSR units. (2019)

Self-Contained Self-Rescuer (SCSR) Long-Term Evaluation Tenth Phase Results – RI9675
DHHS (NIOSH) Publication No. 2008-138 (June 2008)
This report presents findings regarding laboratory-tested SCSRs in the tenth phase of testing, from July 2004 to March 2006.

Self-Contained Self-Rescuer (SCSR) Long-Term Field Evaluation: Combined Eighth and Ninth Phase Results
DHHS (NIOSH) Publication No. 2007-103 (October 2006)
Over 400 units were evaluated by NPPTL and MSHA from December 2000 until April 2004. This report presents the findings of the laboratory testing.

Self-Contained Self-Rescuers (SCSR)

Dockable, Hybrid Self-Contained-Self-Rescuer for use in Mines under development pdf icon[PDF – 14 KB]

Development of Both a Dockable and Hybrid Person-Wearable Self-Contained Self-Rescuer pdf icon[PDF 5.16 MB]external icon

SCSR Interactive Training
Self-Contained Self-Rescuers (SCSR), Inspection, Maintenance, and Use – Interactive Training Courseexternal icon (MSHA Web site)
Inspection, Maintenance, and Use – Interactive Training Course.

Closed-Circuit Escape Respirator (CCER)

Understanding the Breathing Gas Capacities (ratings) of Escape Respirators for Mineworker Use
Understanding the uses and limitations of the CCER is important in planning for an escape during a mine emergency.

Page last reviewed: May 9, 2019