Howard Leight Ear Plugs Refill Polyurethane Foam NRR 33 MXM-30 Color:Clear • N95 filter• Use with Safety Jacket with Hood

Howard Leight Ear Plugs Refill Polyurethane Foam NRR 33 MXM 30 Color:Clear • N95 filter• Use with Safety Jacket with Hood • N95 filter• Use with 501 Filter Retainer• NIOSH approved for environments containing certain non oil based particles• Use on top of 3M gas and vapor cartridges with 3M™ 501 Retainer when particles are also present• Use on top of 3M™ 603 Filter Holder and 3M™ 501 Retainer to reduce particulate exposure• Replaceable particle filter for cost savings• Wide range of applications reduces inventory needs and training requirements• Qty: 1 box of 10 making them suitable for farming These refills provide exceptional noise blocking performance with their polyurethane foam construction offering a Noise Reduction Rating (NRR) of 33 dB