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Box of 200 pairs of yellow bell-shaped foam ear plugs

3M

3M 312-1261 personal protective equipment, foam ear plugs, 33 dB NRR, 200 pairs

SKU CH-51E7-9J1PW MPN 312-1261

Disposable foam ear plugs provide 33 dB noise reduction in a bulk pack of 200 pairs

  • TypeHearing Protection
  • MaterialFoam
  • High noise reduction with 33 dB NRR rating
  • 200 pairs per box for extended supply
  • Foam material conforms to ear canal shape
  • Uncorded design allows quick insertion and removal
  • Meets ANSI S3.19-1974 hearing protection standard

Hearing protection for noisy environments

These disposable foam ear plugs deliver a noise reduction rating of 33 dB for workers who need reliable attenuation in loud settings. The uncorded design suits users who prefer no connecting band between ears. Each bulk box contains 200 pairs, supporting high-volume use across shifts or job sites. They meet the ANSI S 3.19 -1974 standard for hearing protection performance.

NRR 33 dB attenuation

The single specification that determines suitability is the noise reduction rating of 33 dB, which indicates the level of sound reduction under laboratory conditions. Buyers who need a different attenuation value or a corded option for retention will not find those features here. The bell-shaped foam plugs come in a universal medium size and yellow colour. No metal-detectable element is included.

Bulk packaging for daily use

The 200-pair bulk box eliminates individual wrappers, reducing waste and simplifying distribution in industrial or automotive workplaces. Users gain a ready supply for visitors, shift changes or multi-site operations without managing small retail packs. No carrying case, dispenser or software accompanies the product. The packaging is a plain bulk box intended for practical storage.

Highlights

  • High noise reduction with 33 dB NRR rating
  • 200 pairs per box for extended supply
  • Foam material conforms to ear canal shape
  • Uncorded design allows quick insertion and removal
  • Meets ANSI S3.19-1974 hearing protection standard

Specifications

Brand3M
Model312-1261
TypeHearing Protection
MaterialFoam

Questions about this item

How much quieter does a 33 dB NRR make the workplace when the plugs are worn?

The 33 dB Noise Reduction Rating is a laboratory figure; in real use the actual reduction is typically lower because fit, movement and leakage all reduce the effective attenuation.

What does the ANSI S 3.19 -1974 standard cover for these plugs?

That standard defines the test method used to measure the Noise Reduction Rating, so the 33 dB figure comes from a repeatable laboratory procedure.

Will the bell-shaped foam plugs fit a standard dispenser or storage box?

The plugs are supplied loose in a bulk box of 200 pairs; the bell shape and medium size are designed for hand insertion rather than a specific dispenser.

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