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Black and orange hard-hat mounted ear muffs with pivoting cups

3M

3M H31P3E Peltor Hi-Viz Hard Hat Mounted Ear Muffs, 23 dB NRR, Black/Orange, Personal Protective Equipment

SKU CH-R1SM-STPJW

Hard-hat mounted ear muffs with 23 dB noise reduction and liquid-filled foam cushions

  • Hi-viz colouring improves on-site visibility
  • Hard-hat mounting keeps hearing protection secure
  • 23 dB NRR reduces hazardous noise exposure
  • Liquid/foam cushions seal comfortably around ears
  • Pivoting earcups allow quick fit adjustment

Hard-hat mounted hearing protection

The 3M H31P3E Peltor ear muffs attach directly to compatible hard hats for workers who need hearing protection without a separate headband. They suit construction, utilities and industrial crews who must keep head protection in place while reducing noise exposure.

23 dB NRR with liquid-foam cushions

The muffs carry a Noise Reduction Rating of 23 dB and use liquid-foam filled cushions that conform to the head for a consistent seal. Pivoting earcups help maintain contact during movement, and the dielectric construction avoids electrical conductivity on site.

Hi-Viz black-orange cups for visibility

High-visibility black and orange cups make the wearer easier to spot in low-light or busy environments. The assembly weighs 0.5 lb and meets CSA Class AL requirements for hard-hat mounted hearing protectors.

Highlights

  • Hi-viz colouring improves on-site visibility
  • Hard-hat mounting keeps hearing protection secure
  • 23 dB NRR reduces hazardous noise exposure
  • Liquid/foam cushions seal comfortably around ears
  • Pivoting earcups allow quick fit adjustment

Specifications

Brand3M

Questions about this item

How do I attach these muffs to a hard hat, and which step is often missed?

Slide the mounting arms into the hard hat's accessory slots until they click, then pivot each cup down so the liquid/foam cushions seal evenly around the ears; the step often missed is confirming both pivot points are fully engaged before use.

What part will need replacement first and how often?

The liquid/foam filled cushions degrade with sweat and UV exposure; plan to replace them every six to twelve months or whenever the seal feels loose.

At what noise level do these muffs stop providing the rated protection?

The 23 dB NRR applies up to the CSA Class AL limit; beyond that level the attenuation drops and additional hearing protection is required.

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