Slow-Recovery Foam Hearing Protection for Workplace Noise
3M E-A-R Classic 312-1201 earplugs are uncorded, disposable foam hearing protectors with a 29 dB Noise Reduction Rating. Their cylindrical PVC foam construction compresses for insertion and slowly expands to conform to the ear canal when fitted correctly.
This regular-size model uses moisture-resistant foam and comes in polybag packaging. Each box contains 200 pairs, making it suitable for stocking hearing conservation programs, maintenance areas, jobsite supply rooms, and other workplaces where individually issued disposable earplugs are required.
Key Features
- 29 dB NRR
- Soft, slow-recovery foam
- Moisture-resistant construction
- Uncorded cylindrical design
- Regular earplug size
- E-A-Rfit system compatible
Common Applications
- Manufacturing operations
- Construction work
- Automotive facilities
- Maintenance and repair
- Fabrication and machining
- Warehouse equipment areas
Correct Model and Package
Part 312-1201 is the regular-size, uncorded E-A-R Classic earplug supplied in polybag packaging. 3M lists 200 pairs per box and 10 boxes per manufacturer case. It is different from 310-1001, which is the pillow-pack version, and from 311-1101, which is corded.
Use, Care, and Replacement
With clean hands, roll the foam plug into a narrow cylinder, insert it according to the current 3M fitting instructions, and hold it in place while the foam expands. Check the fit before entering the noise hazard. 3M classifies this model as non-reusable; discard earplugs after use and replace them sooner if they become dirty, damaged, or cannot be fitted correctly.
Important Limitations
These earplugs are not corded and are not metal detectable. They should not be selected for operations that require a detectable hearing protector. Hearing protection does not replace feasible engineering or administrative noise controls, and a different protector or dual protection may be required when the workplace noise assessment shows that this model is not adequate.
3M E-A-R Classic 312-1201 Earplug FAQ
How many earplugs are in a box of 3M 312-1201?
Each box contains 200 pairs, or 400 individual earplugs. A manufacturer case contains 10 boxes for a total of 2,000 pairs.
What is the NRR of 3M E-A-R Classic 312-1201 earplugs?
The labeled Noise Reduction Rating is 29 dB. NRR is based on laboratory testing; the protection achieved by an individual wearer depends on correct selection, insertion, fit, and use.
Are 312-1201 earplugs corded?
No. Model 312-1201 is uncorded. The corded E-A-R Classic configuration uses a different manufacturer part number.
What is the difference between 312-1201 and 310-1001?
Both are regular-size, uncorded E-A-R Classic earplugs with 200 pairs per box. Model 312-1201 uses polybag packaging, while 310-1001 is the pillow-pack configuration.
Can 3M E-A-R Classic earplugs be reused?
3M lists this model as non-reusable. Use clean hands during insertion and discard the plugs after use or sooner if they become dirty, damaged, or no longer fit correctly.
Are these earplugs metal detectable?
No. Part 312-1201 is not metal detectable. Facilities that require detectable hearing protection should select a model specifically designed and approved for that requirement.
Are these earplugs compatible with 3M E-A-Rfit testing?
Yes. 3M identifies E-A-R Classic earplugs as compatible with the E-A-Rfit Validation System. Follow the system instructions and workplace hearing conservation procedures when conducting fit testing.
Does NRR 29 mean every worker receives 29 dB of protection?
No. NRR is a laboratory rating and may overestimate protection achieved during typical use. Employers should evaluate the noise exposure, train workers in correct fitting, and verify that the selected hearing protector provides adequate attenuation.
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love the big box
great product i just wish i could buy more
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love the big box
i love buy these in bulk
