① Control the noise source. To reduce the noise of sound source, industry and transportation industry can choose low-noise production equipment and improve production technology, or change the movement mode of noise source (such as damping, vibration isolation and other measures to reduce the vibration of solid sound generator).

② Block the transmission of noise. In the way of sound transmission, we should reduce noise, control the spread of noise, change the way of noise transmission that the sound source has already sent out, such as adopting sound absorption, sound insulation, sound barrier, vibration isolation and other measures, as well as reasonably planning the layout of cities and buildings.

③ Reduce noise in the human ear. For the protection of the noise of the recipient or the organ, if the measures cannot be taken in the sound source and transmission way, or if the acoustic measures taken still cannot achieve the expected effect, it is necessary to take protective measures for the recipient or the organ. For example, workers exposed to long-term occupational noise can wear ear plugs, earmuffs or helmets and other ear protectors.

The control of low frequency noise is the most difficult and complex. For families, a lot of investment is clearly unrealistic. The best way is to reduce the use of these low-frequency noise generating appliances. If necessary, it is better to put it in the bathroom or living room. To reduce the impact on the human body. For children, they can wear earmuffs.