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凡属于不需要的、使人厌烦的或不同频率和强度的杂乱无章的声音,均被称为噪声。如果噪声过强,就会干扰人的正常生活,甚至损害听力及身体其他系统。目前家用电器声级都比较高。按国际标准规定,室内允许的声级为42分贝,如果室内同时开着电视机、电风扇、电冰箱等电器,声波就会大大超过国际标准规定,对人体产生不同影响。长期过强的家庭噪声刺激,还可引起头痛、头晕、耳鸣、失眠、疲
All that is unwanted, boring or disorganized voices of different frequencies and intensities are called noise. If the noise is too strong, it will interfere with people’s normal life, or even damage hearing and other body systems. The current level of household appliances are relatively high. According to international standards, the indoor allowed sound level of 42 dB, if the indoor at the same time open the TV, electric fans, refrigerators and other appliances, sound waves will greatly exceed international standards, have different effects on the human body. Long-term excessive household noise stimulation, can also cause headaches, dizziness, tinnitus, insomnia, fatigue