Air Not Aerosol

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...
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OHD Hires New Product Manager

OHD is extremely excited to announce the hiring of a new Product Manager, Stephanie Lynch.
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OHD Donates Quantifit to Respiratory Protection Center of Chun Shan Medical University in Taiwan

OHD has recently partnered with the Chun Shan Medical University and provided them with an OHD Quantifit mask fit testing device. Providing these up and coming students with the capabilities to...
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OHD Recognizes ShawCity Limited as 2018 International Distributor of the Year

OHD has been protecting the worlds workforce since 1992. It is not without the help from key national and international distributors that we are able to do so.
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Justin Lobdell

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Recent Posts

1 min read
Environmental Noise Monitors - Jan 15, 2019

dBActive app now available for iOS and Android!

This year, Cirrus has taken another leap forward in their product offerings with the launch of the dBActive smartphone application!
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2 min read

Mail Bombs Are Being Sent to Public Figures - How the USPIS Stays Safe with the OHD Quantifit

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 bombs to political figures...
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2 min read

A Sound Level Meter with Calibrator

Each time you use your sound level meter, it should be calibrated using an acoustic calibrator. This can help you ensure that your instrument is measuring correctly and that you are complying with the requirements of any...
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Quantifit - Jul 27, 2018

Fit-Testing Definitions - Everything That You Need to Know

Fit-testing has changed over the years. For a while, there was only one accepted technology and method for testing the fit of masks. Those processes have changed (for the better) as we provide an OSHA and ISO-approved method...
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4 min read

What Do You Need To Measure For Your Work's Noise Regulations?

When making measurements to estimate the noise exposure of a person at work, you need to ascertain the equivalent continuous A-weighted sound pressure level (LAeq) that represents the noise the person is exposed to during the...
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