In today’s world, a single fingerprint can be the difference between multiple deaths and a man locked away, safely away from the public. A Florida man has been charged with sending 14 homemade pipe ...

OHD is the home of the new Quantifit Respirator Fit Tester. Test your respirator fit with a 5-step protocol in as little as 2-3 minutes. Not only the fastest, but also the most accurate method of fit ...

OHD is proud to work with local and national fire departments to assure safety in the areas of respiratory protection, alcohol test and hearing protection. The OHD Quantifit® is not only the fastest ...

First responders must wear respirators, and the OHD Quantifit accurately measures leaks to make sure the face-to-face piece seal is offering adequate protection for the user. When it comes to ...