Respiratory Protection rounded out the top five of The Occupational Safety and Health Administration’s (OSHA’s) most frequently cited violations of fiscal year 2019. The top 10 list is released every year, and respiratory...

This past week, OSHA approved two new fit testing protocols: the modified ambient aerosol condensation nuclei counter (CNC) quantitative fit testing protocol for full-facepiece and half-mask elastomeric respirators, and the...

Protecting workers against inhalation hazards has been a concern for more than 2,000 years. As far back as the first century, miners used animal bladder skins to protect themselves from inhaling toxic dust. In the present day,...

OHD is committed to the research and future development of Respiratory Protection. That is why we have recently partnered with the University of Washington and their School of Public Health.

Let’s talk about fit testing. Fit testing should identify a mask that best suits you, and this includes it being suitable for your job. When you go to fit test your mask, the most important part is walking away with the...