The common unit of expression for noise is "decibel". L ~ 140 decibels is the full range of human hearing. 1 decibels is the smallest sound that the ear can distinguish, and 140 decibels is the maximum that the human ear can tolerate. Noise in the home mainly comes from household appliances such as audio equipment and TV sets. The key to preventing noise hazards is to control and eliminate noise sources. Has the senseful sound sex deafness or the serious neurasthenia person, should pay attention to avoid the noise more.

Several ways to solve the problem:

1. Ventilation equipment type

When choosing ventilation equipment models, we should first decide according to the production needs. If it is in residential areas, we first need to choose some relatively low noise models to control the noise size of ventilation equipment.

2. Ventilation equipment efficiency

The efficiency of ventilation equipment is a very key point, we require ventilation equipment and ventilation cooling equipment in ventilation engineering once run, must be close to the highest efficiency. The same type of ventilation equipment, basically present is the higher efficiency, the lower the noise state.

3. Speed control

Ventilation equipment in the speed of control is a more critical point. Once it is found that the speed of ventilation equipment is not consistent with the environment itself, then the first thing to change is the speed of ventilation equipment, because once the speed is lowered, it can also play the effect of reducing noise.

4. Pipeline gas flow rate

The flow rate of the gas in the pipeline is a key point. The flow rate should not be too high, which will cause more intense noise. The flow rate of gas in the pipeline should be selected according to different requirements in accordance with the provisions.

If the above key points are achieved, it is feasible to reduce the noise problem of ventilation equipment.