…  act on Kyriazi’s suggestions to change the tests. Now, NIOSH officials are re-examining the policy, months after fatal disasters in …  of the testing and certification standards,” said NIOSH spokesman Fred Blosser, who confirmed the proposal was being reviewed …  making breathing even more difficult. But Les Boord, director of the NIOSH National Personal Protective Technology …

…  at coal mines roughly every two years, according to Les Boord, who directs those efforts for the agency. ___ On the …  and Health Administration: http://www.msha.gov/ NIOSH Personal Protective Lab: http://www.cdc.gov/niosh/npptl/ …