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3M E-A-Rsoft SuperFit 312-1256 Cordless Earplugs — NRR 33
$42.40
Final price set by Amazon · may vary
EDITORIAL REVIEW: 4.3/5WC Safety Review — 3M E-A-Rsoft SuperFit 312-1256 Cordless Earplugs Best For: corded single-use foam hearing protection at NRR 33 dB in a low-profile uncorded design. Not For: non-noise haza...
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EDITORIAL REVIEW: 4.3/5WC Safety Review — 3M E-A-Rsoft SuperFit 312-1256 Cordless Earplugs
Best For: corded single-use foam hearing protection at NRR 33 dB in a low-profile uncorded design.
Not For: non-noise hazards, or noise that earplugs alone can't bring under ~85 dBA (add earmuffs).
Bottom Line: a practical single-use foam plug at NRR 33 dB — the uncorded low-profile fit suits tight spaces and high-volume single-use.
Editorial assessment by the WC Safety Editorial Team. Scoring reflects published NRR/specs, fit type, build quality and application fit. WC Safety did not laboratory-test this product.
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3M E-A-Rsoft SuperFit 312-1256 Cordless Earplugs Overview
The 3M E-A-Rsoft SuperFit 312-1256 Cordless Earplugs are cordless single-use foam ear plugs from 3M, rated NRR 33 dB. With no cord to catch or snag, they keep a low profile for tight and confined spaces — the most economical choice for high-volume single-use. Start with our hearing-protection guide and what NRR means, then confirm the noise level you’re protecting against.
The 3M E-A-Rsoft SuperFit 312-1256 belong to the cordless ear plugs range and the NRR 33 ear plugs group. They are single-use (replace when soiled or no longer springy); for the trade-offs see foam vs reusable ear plugs.
What NRR 33 dB Means
NRR is a laboratory rating; NIOSH suggests derating it for real-world use. Here is how NRR 33 dB lines up with common environments (always confirm with a noise survey):
| Environment | Approx. noise | Fit for NRR? |
|---|---|---|
| Power tools / workshop (~95 dBA) | ~82 dBA after derating | Good fit |
| Heavy equipment / construction (~100 dBA) | ~87 dBA after derating | Good fit |
| Manufacturing / plant floor (~90 dBA) | ~77 dBA after derating | Good fit |
| Firearms / impact (140 dB peak) | Impulse noise | Add earmuffs (dual) |
Who Should Buy the 3M E-A-Rsoft SuperFit 312-1256?
Buy them if you want single-use foam hearing protection in a low-profile uncorded design at NRR 33 dB. Consider another plug if you need a different level or style: compare E-A-R UltraFit 340-4003, E-A-Rsoft FX 312-1261, E-A-R Push-Ins 318-1000. For the highest ratings see highest-NRR ear plugs.
Hearing protection only works when worn correctly for the full exposure. The NRR is a laboratory rating; real-world attenuation is typically lower, so OSHA and NIOSH recommend derating it when estimating protection. For very high noise — or whenever earplugs alone can’t bring exposure under about 85 dBA — wear them with earmuffs (dual protection). The 3M E-A-Rsoft SuperFit 312-1256 reduces noise; it does not eliminate it or protect against non-noise hazards.
Best Applications
Industrial & construction noise
Power tools, plants and construction work at sustained high noise suit a low-profile uncorded NRR 33 plug that won’t snag in tight spaces.
Shooting & range use
For range and shooting use, pair a high NRR with muffs for impulse noise.
Pros & Cons
Pros
NRR 33 dB protection · no cord to snag, low-profile for tight spaces · soft single-use comfort · one size fits most
NRR 33 dB protection · no cord to snag, low-profile for tight spaces · soft single-use comfort · one size fits most
Cons
bulkier than uncorded · replace regularly · cord can snag in some tasks
bulkier than uncorded · replace regularly · cord can snag in some tasks
3M E-A-Rsoft SuperFit 312-1256 vs Other Corded Ear Plugs
| Ear plug | NRR / type |
|---|---|
| E-A-R UltraFit 340-4003 | NRR 25 · reusable flanged |
| E-A-Rsoft FX 312-1261 | NRR 33 · single-use foam |
| E-A-R Push-Ins 318-1000 | NRR 28 · reusable flanged |
| E-A-Rsoft 312-1250 | NRR 33 · single-use foam |
3M E-A-Rsoft SuperFit 312-1256 vs the Alternatives
How they compare to close options:
- E-A-Rsoft SuperFit 312-1256 vs E-A-R UltraFit 340-4003: E-A-R UltraFit 340-4003 is NRR 25 (reusable flanged); the E-A-Rsoft SuperFit 312-1256 is NRR 33 (single-use foam).
- E-A-Rsoft SuperFit 312-1256 vs E-A-Rsoft FX 312-1261: E-A-Rsoft FX 312-1261 is NRR 33 (single-use foam); the E-A-Rsoft SuperFit 312-1256 is NRR 33 (single-use foam).
- E-A-Rsoft SuperFit 312-1256 vs E-A-R Push-Ins 318-1000: E-A-R Push-Ins 318-1000 is NRR 28 (reusable flanged); the E-A-Rsoft SuperFit 312-1256 is NRR 33 (single-use foam).
3M E-A-Rsoft SuperFit 312-1256 Quick Answers
Are cordless plugs less protective than corded?
No — same plug body and seal means the same NRR; a cord is only for retention.
Are the 3M E-A-Rsoft SuperFit 312-1256 washable?
No — single-use foam; replace when soiled.
Plugs or muffs?
Both for the highest noise; see ear plugs vs ear muffs.
3M E-A-Rsoft SuperFit 312-1256 Specifications
| NRR | 33 dB (EPA / ANSI S3.19) |
| Type | Cordless single-use foam ear plugs |
| Material | polyurethane foam |
| Reuse | Single-use (replace when soiled or no longer springy) |
| Sizing | One size fits most |
| Metal-detectable | No |
| Brand | 3M |
Fit & Sizing
The 3M E-A-Rsoft SuperFit 312-1256 are single-use foam cordless ear plugs. To fit them, roll them down between your fingers, pull the ear up and back, and insert — they expand to seal the canal — the seal, not just the NRR number, is what protects your hearing. They are one size fits most and single-use (replace when soiled or no longer springy). Browse more options in foam ear plugs, the full cordless ear plugs range, or all hearing protection.
Helpful Hearing-Protection Guides
- Best hearing protection
- What NRR (noise reduction rating) means
- Foam vs reusable ear plugs
- Corded vs cordless ear plugs
- Highest-NRR ear plugs
- Ear plugs vs ear muffs
- OSHA hearing conservation (1910.95)
3M E-A-Rsoft SuperFit 312-1256 Frequently Asked Questions
What is the NRR of the 3M E-A-Rsoft SuperFit 312-1256?
The 3M E-A-Rsoft SuperFit 312-1256 are rated NRR 33 dB (EPA-labeled per ANSI S3.19). Real-world protection is usually lower, so NIOSH recommends derating the NRR when estimating exposure.
Are the 3M E-A-Rsoft SuperFit 312-1256 cordless?
Yes — uncorded for a low-profile fit with no cord to catch, and the most economical option for high-volume single-use.
Are the 3M E-A-Rsoft SuperFit 312-1256 reusable or single-use?
They are single-use (replace when soiled or no longer springy).
How do I insert the 3M E-A-Rsoft SuperFit 312-1256?
To fit them, roll them down between your fingers, pull the ear up and back, and insert — they expand to seal the canal. A proper seal is what delivers the rated protection.
Can I wash the 3M E-A-Rsoft SuperFit 312-1256?
They are single-use foam — replace rather than wash once soiled or no longer expanding.
Are the 3M E-A-Rsoft SuperFit 312-1256 metal-detectable?
No. For food or pharma lines where a lost plug must be detectable, see our metal-detectable ear plugs.
What size are the 3M E-A-Rsoft SuperFit 312-1256?
They are one size fits most.
What noise levels suit NRR 33?
NRR 33 dB suits common industrial noise once derated; for very high or impulse noise, add earmuffs for dual protection. See what NRR means.
Are cordless ear plugs less protective than corded?
No. A cord is only for retention; an uncorded plug with the same body and seal delivers the same NRR.
Are the 3M E-A-Rsoft SuperFit 312-1256 NIOSH/EPA labeled?
Yes — NRR 33 dB is EPA-labeled under ANSI S3.19. WC Safety sells authentic 3M hearing protection through legitimate channels.
Can I buy the 3M E-A-Rsoft SuperFit 312-1256 in bulk or by the case?
Yes. Use the Request a Quote option for case and dispenser pricing on volume orders.
Should I choose ear plugs or ear muffs?
Plugs suit tight spaces, heat and all-day wear; muffs are faster on/off. Many high-noise jobs use both — see ear plugs vs ear muffs.
Written by Steven Eaton, WC Safety Editorial — industrial hearing-protection desk. Reviewed by the WC Safety Editorial Team. NRR and specifications sourced from manufacturer published data (EPA-labeled, ANSI S3.19). Compare the range in cordless ear plugs or read our hearing-protection guide.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Follow your written hearing-conservation program and a professional fit/exposure assessment. General information, not medical advice.
Brand / Vendor
3M
Model / SKU
312-1256
Product Type
Ear Plugs
Price
$42.40 (Amazon)
Rating
4.3 / 5 — 10 reviews
Availability
Check current availability on Amazon
No Paid Placements
Every product earns its place based on safety credentials and field performance, not advertising spend.
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Verified Buyer Reviews
Customer Reviews
★★★★☆4.2 / 5· 87 ratings on Amazon
★★★★★
Best Earplugs EVER!
Hands down the best earplugs ever. They are 1000x more comfortable than any other ear plugs I've worn. I'm not sure if it's just that I'm a woman or that I have smaller ear canals than most (I don't think so, but who knows?) but I have to sleep with earplugs in at night to not be awoken by my husband's snoring. With other kinds I will end up unconsciously removing them in the middle of the night because they cause pain in my ear canal. But not with these. I can wear them all night and not feel any pain or soreness. I let my sisters have a couple pairs and they both agree they're the best and even think they block out the noise better than others they've used. WE LOVE THEM!!
Verified Purchaser · December 1 · ✓ Amazon Verified Purchase
★★★★★
Comfort and Affodability in spades! 200 pairs!
Great, best I've ever put in my ears. They lower the sound by more than most, and are most comfortable. And believe you me, I've tried LOTS of different hearing protection through the years for working in the loud factory department I work in. And they work great for protecting you from the sounds of lawn care equipment too.
Verified Purchaser · April 4, 2 · ✓ Amazon Verified Purchase
★★★★★
So soft and comfortable yet provides great protection like the standard "orange"
So soft and comfortable yet provides great protection like the standard "orange". Love wearing them under my motorcycle helmets as they are less likely to back out like your standard plugs. Plus they don't hurt your ears after hours on continuous use.
Verified Purchaser · December 2 · ✓ Amazon Verified Purchase
★★★★★
Perfect for motorcycling, loud hotels & shooting
This is my second box, and they are an item I never leave on a camping trip without. Motorcycling these are easily reused for a few days, and they block just the right amount of wind buffeting noise. Also work well for target practice.
Verified Purchaser · February 1 · ✓ Amazon Verified Purchase
★★☆☆☆
TOO SHORT, 1 got stuck in ear
Quality materials and reduces noise at a concert to safe levels... but they're TOO SHORT, which means you have to push them further into your ear AND it means they can be hard to get back out! I got one stuck in my ear and attempts to get it out resulted in it painfully pushing against my ear drum. By pushing really hard on my surrounding ear area, I was able to get enough purchase on an edge of the plug to get it out eventually. Longer plugs are better. Stick to the EEM 1100's or Howard Leight plugs over these.
Verified Purchaser · August 4, · ✓ Amazon Verified Purchase
★★★★★
Best earplugs ever
Hands-down the best I've ever used. I tried a pair that mechanics I know use when they work, just to see if they'd help me sleep through the night better (I live on a main street downtown), and I couldn't hear anything at all. They should be replaced at least once a week to stay effective, but these have given me some of the best nights of rest of my life.
Verified Purchaser · June 17, 2 · ✓ Amazon Verified Purchase
★☆☆☆☆
Wont stay in ears
They looked good but once you try to put in ear, they compress and wont expand. If your lucky enough to get them to expand, they wont stay in your ears. Very dissappointed.
Verified Purchaser · February 6 · ✓ Amazon Verified Purchase
★★★★★
Excellent protection
These are very soft and the highest NRR rating that I've seen, 33! Our clients are very happe that we offer them through our OSHA program!
Verified Purchaser · February 1 · ✓ Amazon Verified Purchase
★★★★★
Great for loud environments
Working in a package sorting facility every day, I'm around a lot of loud machines. These plugs help to filter out the ear-damaging sounds while still being able to hear voices.
Verified Purchaser · January 23 · ✓ Amazon Verified Purchase
★★★★★
Great fit
Were exactly same ones as had before & will reorder again when out.
Verified Purchaser · April 22, · ✓ Amazon Verified Purchase
Showing 10 of 87 Amazon reviews.
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