防音耳塞
產品介紹
商品名稱:
防音耳塞
防音耳塞
詳細介紹:
em No | Meet Standard | NRR/SNR value |
EP564 Series | ANSI S3.19 | NRR value: 27dB |
|
EN352-2 :2002 |
SNR value: 28dB |
Combined with soft rubber ear plug, PP tubular insert device, nylon neck string, and portable PP Plastic box.
Unique 4 layer cut off design enhances the sound-insulated effect.
Front end spatial design fits ear channel to reduces ear internal pressure for wearer comfort.