OHD: Protecting the
World's Workforce

As OHD passionately protects the health of the world's workforce, we are constantly expanding our presence throughout the world. With the new International Standards on Mask Fit Testing (ISO 16973-3), the Quantifit is rapidly becoming the gold standard on every continent, in every country. Please reach out to us at Regulations@OHDUSA.com so we can help you with establishing your own Respiratory Protection Program in your country!