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Box of 100 yellow foam ear plugs in cardboard pillow pack

3M

3M 321-2100 Ear Plugs 25dB Uncorded PK100 personal protective equipment

SKU CH-1J95-B6VCW MPN 321-2100

Reusable foam ear plugs with a 25 dB noise reduction rating, supplied as 100 uncorded pairs

  • TypeHearing Protection
  • Reduces noise by 25 dB for safer hearing
  • Push-in foam pods insert quickly without rolling
  • Uncorded design avoids snagging on machinery
  • Reusable plugs lower cost over single-use alternatives
  • 100 pairs per box keeps teams supplied longer

Industrial hearing protection

These 3M ear plugs deliver a 25 dB noise reduction rating for workers in loud environments such as factories, workshops and construction sites. The pod-shaped foam design fits a universal medium size and is pushed into the ear canal without a cord, reducing snag hazards near moving machinery. Each pair is individually paper-wrapped for hygiene and supplied in a cardboard pillow pack containing 100 pairs. The product meets CSA Class AL standards and is not metal detectable.

Reusable foam performance

The soft foam material conforms to the ear canal to maintain an acoustic seal during extended shifts while remaining lightweight enough to avoid pressure fatigue. Because the plugs are reusable, they can be cleaned and reinserted multiple times before replacement, lowering ongoing consumable costs. The uncorded format eliminates dangling cords that could catch on equipment or interfere with other personal protective equipment such as helmets or face shields.

Hygienic bulk packaging

Paper-wrapped pairs keep each set clean until the moment of use, which is critical in dusty or oily workplaces where loose plugs would quickly become contaminated. The cardboard pillow pack stores 100 pairs in a compact, stackable carton that fits on shelf bins or in mobile tool chests for easy distribution at shift change. No dispensing station or additional accessories are included, so users simply pull a wrapped pair from the box when needed.

Highlights

  • Reduces noise by 25 dB for safer hearing
  • Push-in foam pods insert quickly without rolling
  • Uncorded design avoids snagging on machinery
  • Reusable plugs lower cost over single-use alternatives
  • 100 pairs per box keeps teams supplied longer

Specifications

Brand3M
Model321-2100
TypeHearing Protection

Questions about this item

How do I install the push-in earplugs so the foam pod seats correctly?

Hold the flexible stem, pull the ear up and back, then push the yellow foam pod straight in until it seals — do not roll the foam or it will not expand properly.

When should the reusable foam pods be replaced?

Replace a pair when the yellow foam no longer springs back, shows cracks, or is visibly soiled — each cardboard pillow pack contains 100 paper-wrapped pairs for rotation.

What protection limit appears first during continuous noise exposure?

The 25 dB CSA Class AL rating is the steady-state ceiling; once ambient noise exceeds that level the plugs cannot attenuate further.

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