Why Does The Dehumidifier Make Noise?

The dehumidifier must work quietly, no matter how much you trust it, it actually doesn't exist because nothing can run completely quietly. Of course, technology is constantly advancing and efforts are being made to develop dehumidifiers to ensure efficient dehumidification while operating as quietly as possible.
The reason why dehumidifiers cannot operate completely silently is due to the nature of the components installed in the casing and the need to suck air into the components to remove moisture and reduce indoor humidity. Air is drawn into warm and humid air through a fan, and then blown back into the room for operation. This operation of the fan produces a low buzzing sound, which can be heard in the silence of the night, but may not be heard during the daytime when the background noise is louder
The noise generated by the fan itself will be determined by two different factors: the first factor is the size or capacity of the fan motor. The noise generated by larger motors is much greater than that of smaller motors. The second factor is the operating speed of the fan. Higher speeds will result in higher wind speeds and higher operating noise levels.
A common misconception is that the main source of noise comes from the compressor in the equipment. If you listen to the sound of the dehumidifier in defrost mode, you will not hear the compressor running, but only the difference between the fan and the noise. In the case of a household refrigerator, the buzzing sound of the compressor may be minimal, but the capacity of the dehumidifier will be much smaller than the compressor used in the refrigerator.
If it is still determined that there is noise from the compressor, the equipment may age. As the equipment ages, the parts may detach from normal use and sometimes cause secondary vibration. That's why building quality is so important when choosing a dehumidifier.
One obvious way to address the noise generated by dehumidification equipment is to keep it as far away from residential spaces as possible, especially at night when everyone is sleeping. If space is limited, it is best to make the operating area around the device smaller. This can be achieved by reducing the vibration surface in contact with the device (such as wooden flooring), and a better idea is to place it on the carpet to reduce the harshness and sharpness of the sound. Being below 50 decibels is very comfortable, but due to the logarithmic nature of sound, a mere 10% change in sound level can reach 55 decibels, which is very obvious.
Finding a completely silent dehumidifier may be a challenge. Always invest time and effort in research and development, use more efficient fans and compressors to produce suitable equipment, control noise, make dehumidifiers run quietly, and create a more comfortable environment.