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Yellow foam bullet ear plugs on blue vinyl cord in bulk box

3M

3M 311-4106 Ear Plugs 32dB Corded Metal Detectable 200 Pairs

SKU CH-30TQ-0NPK7 MPN 311-4106

Disposable polyurethane ear plugs with a 32 dB noise reduction rating, corded and metal detectable, supplied as 200 wrapped pairs in a bulk box

  • TypeHearing Protection
  • MaterialPolyurethane
  • 32 dB noise reduction protects hearing in loud environments
  • Metal-detectable design prevents contamination in food processing lines
  • Corded style keeps plugs together and reduces loss
  • 200 pairs per box supplies teams for extended use
  • ANSI S3.19-1974 tested for verified attenuation performance

Industrial hearing protection

These disposable polyurethane ear plugs provide a Noise Reduction Rating of 32 dB for workers in loud environments. Each pair is corded to prevent loss and coloured yellow for quick visual checks. The bulk box contains 200 individually wrapped pairs for easy distribution across shifts.

Metal detectable design

A metal detectable element allows the plugs to be found by standard detection equipment if they fall into food or pharmaceutical production lines. This feature supports compliance with contamination control protocols in regulated processing facilities.

ANSI S3.19 1974 tested

The plugs meet the ANSI S3.19 1974 standard for hearing protector attenuation measurement. The blue vinyl cord stays flexible in cold conditions and the bullet shaped foam expands to fit a medium size ear canal. No carrying case or dispenser is included in the bulk packaging.

Highlights

  • 32 dB noise reduction protects hearing in loud environments
  • Metal-detectable design prevents contamination in food processing lines
  • Corded style keeps plugs together and reduces loss
  • 200 pairs per box supplies teams for extended use
  • ANSI S3.19-1974 tested for verified attenuation performance

Specifications

Brand3M
Model311-4106
TypeHearing Protection
MaterialPolyurethane

Questions about this item

How much noise does the 32 dB rating actually block in a workplace?

The NRR 32 dB figure comes from ANSI S3.19-1974 laboratory testing; real-world attenuation depends on fit, wear time and background spectrum, so treat it as an upper limit.

What does the ANSI S3.19-1974 standard cover for these plugs?

It defines the laboratory method used to derive the 32 dB Noise Reduction Rating printed on the box.

Will the bullet-shaped foam and blue vinyl cord fit in a standard dispenser?

Each pair is individually wrapped in a bulk box of 200; the bullet profile and cord dimensions follow the regular 3M E-A-R Classic envelope.

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