3M
3M 318-4001 Corded Ear Plugs Bell Shape 31 dB 200 Pairs
Corded foam ear plugs with a 31 dB noise reduction rating, supplied as 200 reusable pairs in a bulk box
- TypeEar Drying
- SizeUniversal
- ColorYellow
- 31 dB noise reduction protects hearing in loud environments
- Corded design keeps plugs together and prevents loss
- Bell-shaped foam fits a wide range of ear canals
- Reusable construction allows multiple uses per pair
- Bulk pack of 200 pairs supplies teams or long-term use
3M 318-4001 Ear Plugs for Noise Protection
These 3M 318-4001 ear plugs provide a Noise Reduction Rating of 31 dB for workers in loud environments. The bell-shaped foam design uses a push-in insertion method for a secure fit. Each bulk box contains 200 pairs individually wrapped in plastic bags. They suit industrial, construction and workshop settings where consistent hearing protection is required.
Reusable Foam with Vinyl Cord Reduces Loss
The polyurethane foam plugs are reusable and feature a blue vinyl cord that keeps the pair together when not inserted. Corded design prevents individual plugs from falling onto floors or into machinery. Yellow foam colour allows quick visual compliance checks by supervisors. The 31 dB CSA Class AL rating applies when plugs are fitted correctly according to the push-in method.
Universal Size Fits Most Users Without Adjustment
Universal medium sizing eliminates the need to stock multiple size variants across a workforce. Bulk packaging of 200 pairs supports high-turnover sites and reduces reorder frequency. No metal-detectable components are present, so they are not suitable for food-processing lines that require detectable PPE. Users seeking metal-detectable or uncorded options will need a different product.
Highlights
- 31 dB noise reduction protects hearing in loud environments
- Corded design keeps plugs together and prevents loss
- Bell-shaped foam fits a wide range of ear canals
- Reusable construction allows multiple uses per pair
- Bulk pack of 200 pairs supplies teams or long-term use
Specifications
| Brand | Aearo Co |
|---|---|
| Type | Ear Drying |
| Size | Universal |
| Color | Yellow |
Questions about this item
How do I insert the push-in cone plugs so the 31 dB rating is achieved?
Hold the blue vinyl stem, push the yellow foam cone straight into the ear canal until it seals, and do not twist — twisting breaks the foam and lowers attenuation.
When should the 200 pairs be replaced during daily use?
Replace each pair when the yellow foam no longer expands fully, shows cracks, or becomes soiled — typically after one shift in dusty or oily conditions.
What limits comfort during an eight-hour shift with the vinyl cord and band?
The vinyl cord and band can press behind the neck and warm the ear canal after several hours, so many users rotate the band forward or take short breaks.
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