The 3M X-Series X4A Earmuffs represent 3M’s latest advancement in hearing conservation, combining innovative comfort, design, and protection. Featuring a newly designed spacer, specially formulated foam liners, and innovative ear cushions, the X4A improves attenuation while remaining lightweight and low-profile. This design enhances compatibility with other personal protective equipment and provides reliable protection against moderate-to-high industrial noise and other loud environments. The X4A also features an electrically insulated (dielectric) wire headband for safety in low-voltage electrical hazard areas.

Key Features:

• Lightweight, Low-Profile Design;
  Comfortable and compatible with other personal protective equipment while offering protection against moderate-to-high industrial noise.

• Electrically Insulated Headband;
  Dielectric wire headband with metal components covered by non-conductive material for use in low voltage electrical hazard environments (less than 440 V AC).

• Consistent Pressure;
  The wire headband provides uniform pressure over prolonged wearing periods.

• Adjustable Earcup Pivot Points;
  Earcups tilt for optimum comfort and efficiency.

• Certified Noise Reduction;
  Noise Reduction Rating (NRR) of 27 dB, CSA Class AL, and EN 352:2020 compliant with a Single Number Rating (SNR) of 33.

Important Safety Notes:

• NRR may overestimate protection during typical use; 3M recommends reducing the NRR by 50% to estimate actual noise reduction.

• While the headband has been tested for electrical insulation, users must determine overall suitability for their specific applications and any hazards beyond noise.