The Certified Equipment List (CEL) is the official listing of all NIOSH Approved® respirators. Search the CEL using the approval number, quick search, or advanced search tabs.

The National Institute for Occupational Safety and Health (NIOSH) conducts research and makes recommendations for the prevention of work-related injury and illness.

NIOSH is a professionally diverse organization with a staff of 1,200 people representing a wide range of disciplines including occupational epidemiology, occupational toxicology, medicine, industrial …

At no cost to the employer or employees, NIOSH conducts studies of workplaces in response to these requests to learn if workers are exposed to hazardous materials or harmful conditions. Workplace …

HHS has reinstated hundreds of NIOSH employees after widespread concern that staffing cuts threatened critical occupational safety and health research.

1 day ago · On Feb. 3, the U.S. House of Representatives passed H.R.7148, which appropriated funds for the Department of Labor (DOL), the Department of Health and Human Services (HHS), and …

20 hours ago · NIOSH RIF Reversal Is a Public Health Win, but Not Without Challenges Many employees for the US’ sole agency dedicated to worker health and safety are returning to work, but …

Jul 17, 2025 · This document helps healthcare employers identify drugs considered by NIOSH to be hazardous drugs.

Nov 17, 2022 · The NIOSH recommended exposure limit (REL) was intended to address the protection of underground uranium miners and did not consider radon exposure in other occupations.

Have to shout to be heard by a coworker an arm's length away. Experience temporary hearing loss when leaving work. The National Institute for Occupational Safety and Health (NIOSH) Sound Level …