3M E-A-Rsoft SuperFit Corded Foam Earplugs – Hearing Protection with a Visual Insertion Guide
3M E-A-Rsoft SuperFit 311-1254 corded earplugs combine soft, slow-recovery foam with an orange fitting ring that helps workers learn appropriate insertion depth. The tapered profile and smooth texture support comfortable fitting, while the cord keeps the pair together between tasks. ASA supplies 200 pairs per box—400 individual earplugs.
This regular-size, disposable model carries an NRR of 33 dB. The orange ring is a training aid, not proof of a protective seal or a guaranteed noise reduction. Select hearing protection using workplace exposure measurements and the individual wearer’s fit.
3M E-A-Rsoft SuperFit / 311-1254
S311-1254
Regular / 200 corded pairs
NRR 33 dB / CSA Class AL
Key Features
- Orange ring provides a visible insertion-depth reference.
- Slow-recovery polyurethane foam allows time for fitting.
- Attached cord helps keep the pair together.
- Each pair is packaged in a poly bag.
Common Uses & Applications
- Construction, manufacturing and industrial maintenance.
- Automotive service, metalworking and woodworking.
- Warehouse equipment areas with assessed noise hazards.
Where airborne hazards are also present, select appropriate respirators for airborne hazard protection and check that all PPE can be worn correctly together.
Using the SuperFit Ring
With clean hands, roll the foam into a narrow, crease-free cylinder. Pull the ear upward and outward, insert the compressed plug and hold it until it expands. Use the orange ring as directed in the manufacturer’s fitting instructions. If a comfortable fit cannot be achieved, ask your safety professional about another size or protector.
3M E-A-Rfit validation can measure personal attenuation using the appropriate equipment and probed test plugs. This provides information that visual inspection alone cannot establish. Do not assume that hiding the ring means the wearer receives the full laboratory NRR.
Cord Safety & Daily Care
Assess entanglement hazards around moving machinery before choosing corded earplugs. Keep protection fitted throughout hazardous noise exposure, including conversations. Remove plugs only after reaching a safe noise environment. Replace dirty or damaged plugs and store unused pairs away from contamination.
Applicable Hearing Conservation Requirements
OSHA 29 CFR 1910.95 requires a hearing conservation program in general industry at exposures reaching an eight-hour time-weighted average of 85 dBA. Employers must evaluate attenuation and ensure proper fitting and training; OSHA does not certify this earplug as universally suitable.
NIOSH hearing protection guidance recommends individual fit testing. Actual protection may be lower than laboratory ratings.
Manufacturer Documentation
Review 3M’s U.S. SuperFit 311-1254 specifications for the NRR and model details.
The 3M SuperFit technical datasheet (Australia/New Zealand PDF) covers construction and fitting. Its regional SLC80 rating is different from U.S. NRR.
FAQ
Are these metal-detectable earplugs?
No. Standard model 311-1254 is not metal detectable. Choose a documented detectable version when required by facility policy.
Does the box contain 200 individual plugs?
No. ASA’s box contains 200 pairs, equivalent to 400 individual earplugs.
