Disclaimer
For informational purposes only. This calculator is a free reference tool provided by Occupational Exposure Management Systems LLC (OEMS) to support, not replace, the judgment of a qualified industrial hygienist, audiologist or safety professional. It is not legal, medical, engineering or compliance advice, and using it does not create a consulting or professional relationship with OEMS.
Results depend on your inputs. Calculations assume accurate measurements taken with properly calibrated instruments set up for the selected criteria (criterion level, exchange rate and threshold). They do not account for impulse or impact noise, peak levels, measurement uncertainty, ototoxic chemicals, noise outside of work, or the protection hearing protectors actually provide. Check any result before relying on it.
Not a compliance determination. Requirements are set by the applicable regulations, which can change and may be stricter in OSHA state-plan states or under contract or company rules. OEMS is not affiliated with or endorsed by OSHA, NIOSH or ACGIH. Consult the current standards and a qualified professional before making decisions about exposure, controls, hearing conservation programs or worker health.
No warranty; limitation of liability. This tool is provided “as is” and “as available,” without warranties of any kind, express or implied, including accuracy, completeness, fitness for a particular purpose or uninterrupted availability. To the fullest extent permitted by law, OEMS is not liable for any loss, injury, penalty or damage arising from use of, or reliance on, this tool or its results. You are responsible for how you use the results.
Your data. Calculations run entirely in your browser. OEMS does not receive or store the values you enter.
Sources. OSHA 29 CFR 1910.95 and Appendix A; NIOSH Criteria for a Recommended Standard: Occupational Noise Exposure (1998).
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