NFPA 1989: 2008 Standard on Breathing Air Quality for Fire and Emergency Services Respiratory

National Fire Protection Association (NFPA). 2008 Edition. It was issued by the Standards Council on December 11, 2007, with an effective date of December 31, 2007, and supersedes all previous editions. This edition of NFPA 1989 was approved as an American National Standard on December 31, 2007. 20p. This standard shall specify the minimum requirements for breathing air quality for emergency services organizations that use atmosphere-supplying respirators for the respiratory protection of their personnel.