How much noise does a room ventilator produce?

The noise level of a room ventilator varies between models and depends on factors such as fan speed and installation conditions. Sound levels are typically stated in dB(A) and measured at different operating modes. At low speed, the noise level is lower and suitable for bedrooms and living areas. At higher speeds, the noise level increases and is used when additional ventilation is required. Detailed sound data for each model can be found in the room ventilator brochure.