Noise from fans is often an unpleasant nuisance in the workplace. The article describes what influences these noises and measures on how to reduce fan noise.

More and more people around the world are working in offices. At office workplaces, noise, which all too often comes from fans, is the number one disruptive factor. Noise is perceived as unpleasant and stressful by all people who have to work in a highly concentrated manner. The quiet noise from fans in offices, laboratories, hospital wards, etc. can affect people’s health. How can this disturbance be mitigated?

The term annoying noise cannot be defined objectively. Sound measurements and specified guide values only give an indication of the degree of annoyance, because people react very subjectively to noise.