It is, in fact, the air that generates the most noise in your kitchen ventilator. Or, more specifically, the friction generated by the air as it passes through the ventilator. The relationship between air flow and noise level is clear, therefore. A large air flow generates more noise, and a small air flow gives less noise. The trick is to lead the air all the way through the ventilator in the smartest possible manner, so that the lowest possible friction occurs. This requires technical know-how, accuracy and patience. Every detail is important, from the shape of components to the choice of design solutions.
Another source of noise is vibrations. Anything that is loose will vibrate. Vibrations generate unwanted noise. Accuracy when the ventilator is installed is thus the best guarantee of avoiding undesired vibration noise. This sounds obvious, but it is unfortunately not always the case. The noise level is, of course, an important factor when kitchen ventilators are tested. In the latest test carried out by the Swedish Consumer Agency (Konsumentverket; KV), the average value was 65.2 decibels. The Futurum Supernova, with the best fume extraction, achieved 64 decibels.
So what are 64 decibels? An ordinary conversation is between 50-60 decibels, whereas a jet engine is equivalent to around 140 decibels. However, even apparently small increases in loudness are experienced as greater than you might imagine. An increase of only 10 decibels means that the noise is perceived as twice as loud by our ears! Hand on heart, how often do you do it?
Most of the noise in your kitchen ventilator is produced by the air throughput.Vibrations also cause noise. Fortunately, the best kitchen ventilators from the point of view of noise are no louder than a normal conversation, i.e.just over 60 decibels.
