There’s more to using hearing protectors than simply ordering a box of earplugs and setting them out in the break room or nurse’s office. Let’s review four steps that you need to take in order to make your use of hearing protection as safe and effective as possible.

Tests should not only measure the total amplitude of decibels, but also the specific frequencies of noise. The best way to determine the frequency of noise from various equipment is to use an “octave band analyzer.” Monitoring frequencies can be useful because some hearing protectors with lower NRRs (Noise Reduction Ratings) actually work better at certain frequencies.