Technology to bring convenience to people's lives at the same time, but also on people's physical and mental health had a profound impact. Among them, the hazards of low-frequency noise, although do not get enough attention, but their physical and mental health caused by chronic injury, but can not be ignored. So, what is the harm of low-frequency noise, and how to prevent and treat it? 
 Bebel static noise experts said, any noise will have an impact on the physical and mental health, the hazards of low-frequency noise is more far-reaching. Low-frequency noise generally refers to the frequency below 500 Hz sound, the sound source elevators, transformers, central air-conditioning (cooling tower) and traffic noise. 

 The hazards of low-frequency noise 

 Bebel static noise experts pointed out that noise pollution is the first of the world's seven major nuisance, and low-frequency noise on the human body is a kind of chronic injury, should not be ignored. 

 Low-frequency noise due to the direct access to the human ear bones, and make people sympathetic tension, tachycardia, hypertension, endocrine disorders. Were forced to accept this kind of noise, prone to worry, agitation, irritability, bad mood, and even irrational. If long-term harassment of low-frequency noise, it will induce neurasthenia, insomnia, headaches and other neurosis, and even affect the unborn fetus of pregnant women. 


 Prevention and treatment of low-frequency noise 

 In view of the dangers of low-frequency noise, experts advise to pay attention to their daily lives to take preventive measures, especially in terms of housing renovation should pay attention to choose the right insulation materials and processes. Such as better sound insulation of solid wood flooring on the ground; can also reduce the noise in the ground or the channel part of the carpet; soundproof ceiling with a professional sound insulation materials; 90% of external noise is passed in from the doors and windows, so the choice of noise good Bebel static noise doors and windows is very important; more choice of fabric craft decoration and soft decorative. In general, the thicker curtains, sound-absorbing effect, the better texture to cotton; windowsill in the street, the balcony placed some more green foliage, can also reduce the introduction of noise.