Anyone performing a US Department of Transportation (DOT) mandated breath alcohol test must be trained as a Breath Alcohol Technician (BAT) and individuals performing non-DOT regulated testing are encouraged to do the same....

You never know where you might be and what you might be doing when you need a tight fitting mask that has a proper seal. That is where the people on the Island of Hawaii found themselves last Friday when the Kilauea volcano...

OHD is committed to the research and future development of Respiratory Protection. That is why we have recently partnered with the Marshall University and their Safety Department.

There are essentially two technologies for quantitative respirator fit testing: ambient aerosol technology, which uses particle-based counting and controlled negative pressure (CNP) technology, which uses air to challenge the...

OHD is committed to the research and future development of Respiratory Protection. That is why we have recently partnered with the University of Minnesota and their Environmental Health and Safety Department.