The experimental results indicated that using of ear plug was more discomfort than using ear muff, but in strong noise environment(higher than 80dB(A)) , ear plug had better effect on body balance.

• 研究结果还表明,耳塞对人体的不适感大于耳罩,但是在强噪声(80dB(A)以上)环境下,隔声量大的耳塞的佩带更有利于人体平衡的维持,有利于作业安全。