Annoyance from noise at the workplace is a problem in environments operating multiple instruments with varied noise levels and frequencies. When a high level of concentration is required, noise above 55 dB(A) is considered annoying to most people. Noise pollution leads to stress, which can have a negative impact on the health and the well-being. It can also negatively impact performance. Considering many scientists read, write and have detailed discussions at the bench, the accumulated noise level in the lab should be kept at a low level for a healthy, stress-free and productive work environment.
Noise in a laboratory comes from a variety of sources including hoods, biological safety cabinets, fridges, freezers and centrifuges. Noise from all sources add up to an accumulated noise level. For example, two devices operating at 55 dB(A) produce a noise level of 58.1 dB(A). Adding a third device operating at 60 dB(A) leads to a noise level of 62.1 dB(A).