Have you been waiting for the right time to upgrade your fit tester from the TSI PortaCount® to the revolutionary OHD Quantifit®? Aren't you tired of the inconvenience of sometimes having to ensure...
OHD recently took part in a city wide training for the Chicago Fire Department. OHD, along with NIPSTA (Northeastern Illinois Public Safety Training Academy) completed a "Train the Trainer" session...
Since being posted on YouTube, Sarah Churman’s video has been viewed over 26,000,000 times. Sarah, born deaf, was 29 years old at the time, a young mother of two that had never heard her children’s voices or her husband’s...
Tomorrow night New York City will host one of its largest crowds of the year for the annual New Year's Eve Ball drop. According to this CBS News article over 7000+ New York City Police officers will be on patrol watching over the...
