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Dr.meter NRR 27 Ear Muffs — Adjustable Over-the-Head Hearing Protection (Adults & Kids)
$18.75
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — Dr.meter Hearing Protection Ear Muffs, 31dB Noise Reduction Safety Earmuffs with Adjustable Headband for Adults Kids Aut Editorial assessment by the WC Safety Editorial T...
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EDITORIAL REVIEW: 4.5/5 WC Safety Review — Dr.meter Hearing Protection Ear Muffs, 31dB Noise Reduction Safety Earmuffs with Adjustable Headband for Adults Kids Aut
Editorial assessment by the WC Safety Editorial Team, based on published Dr.meter specifications and category fit. We did not laboratory-test this product.
Dr.meter NRR 27 Ear Muffs — Adjustable Over-the-Head Hearing Protection (Adults & Kids) Overview
The Dr.meter Hearing Protection Ear Muffs are passive, over-the-head safety earmuffs built for everyday noise control across adults and kids. The headband adjusts down to smaller heads and out to adult sizing, so a single pair covers mowing, woodworking, range days, study and sensory use, and travel. Independently sealing cups and a padded headband keep the fit comfortable through longer wear sessions.
The label-marketed "31dB" is a marketing/SNR-style figure, not the certified ANSI rating. The Noise Reduction Rating (NRR) for these muffs is 27 (ANSI S3.19) — that is the number you use for hearing-loss prevention and OSHA math. Like every passive earmuff, the real-world attenuation you actually get is lower than the label once fit, seal, and the NIOSH/OSHA derate are applied, so size conservatively rather than to the headline number.
For workplace use, these belong in your hearing protection lineup as a passive over-the-head option alongside other ear muffs. If your exposure is high or impulse-heavy, compare against higher-NRR or electronic ear muffs and double-stack with plugs. Before relying on any single rating, run your exposure through how to calculate the NRR you need and confirm your duty under OSHA 1910.95.
What It Is Built For
| Use case | Fit | Buyer guidance |
|---|---|---|
| Mowing, leaf blowers, yard equipment | Strong fit | NRR 27 derates to roughly mid-teens of real-world dB — ample headroom for gas mowers and blowers in the 95–105 dB range. |
| Woodworking, routers, shop tools | Strong fit | Passive over-the-head design seals well for steady-state shop noise; pair with safety glasses without breaking the cushion seal. |
| Gun range / shooting support | Conditional fit | Adequate for spectators and rimfire support, but for centerfire and indoor ranges double up with plugs or step to a 30–33 NRR muff. |
| Study, focus, sensory & autism comfort | Strong fit | Adjustable headband sizes down for kids; passive attenuation calms ambient noise without electronics or batteries. |
| Industrial / OSHA-regulated exposure | Conditional fit | Verify the derated NRR covers your TWA under 1910.95; high or impulse exposures may need dual protection or a higher rating. |
| Travel, concerts, loud events | Strong fit | Foldable, battery-free and packable; consistent passive protection with nothing to charge or fail. |
Earmuffs reduce noise, but the labeled NRR is a laboratory number — real-world protection is lower (NIOSH and OSHA both derate it). The muff only protects if the cushions seal fully around the ear: long hair, eyeglass temples, and gaps under a hard-hat-mounted muff all break the seal. In very high noise, wear muffs and earplugs together (dual protection). Electronic muffs amplify quiet sounds and cut loud impulses but still protect only to their rated NRR. OSHA 29 CFR 1910.95 sets the 85 dBA action level; size protection to your measured noise — see how to calculate the NRR you need.
Pros & Cons
Pros
- Certified NRR 27 (ANSI S3.19) — solid passive protection for moderate-noise work and recreation
- Over-the-head adjustable headband fits both adults and kids from one pair
- Passive design needs no batteries, charging, or electronics — nothing to fail
- Lightweight, padded headband and cushions support longer comfortable wear
- Versatile across mowing, shop work, range support, study, sensory use, and travel
- Budget-friendly entry into a dedicated hearing-protection muff
Cons
- Marketed '31dB' is not the ANSI NRR — the certified rating is 27, and real-world protection is lower still after derate
- NRR 27 is mid-range; centerfire/indoor shooting and high-dB industrial noise may need a higher rating or dual protection
- Passive only — no sound amplification, no Bluetooth, no radio for situational awareness
- Not cap-mountable, so it won't pair with a hard hat slot
- Over-ear cups can feel warm during extended outdoor wear in heat
How It Compares
Within passive over-the-head muffs, this Dr.meter pair sits in the mid-NRR tier. Compared with the Moldex MX-6 over-the-head earmuffs (a comparable passive, no-electronics design), the Dr.meter's main edge is its adjustable adult-and-kids sizing; both rely on cushion seal quality rather than electronics. The Radians DEF-GUARD 23 earmuff is a lower-NRR passive option for lighter exposures, so the Dr.meter's NRR 27 gives more headroom for mowing and shop work. If you need situational-awareness amplification or impulse compression for shooting, step outside passive muffs entirely to an electronic pair like the Howard Leight Impact Sport electronic ear muffs — but remember any electronic muff still only protects to its own NRR. For passive picks ranked by use, see best passive ear muffs.
Specifications
| Noise Reduction Rating (NRR) | 27 dB (ANSI S3.19) |
| Test standard | ANSI S3.19-1974 |
| Form factor | Over-the-head, adjustable headband |
| Technology | Passive attenuation (no amplification / no radio / no Bluetooth) |
| Cap-mount compatible | No |
| Dielectric | Not rated / not specified |
| Fit range | Adults and kids (adjustable) |
| Power | None required (battery-free) |
| Brand | Dr.meter |
Related Resources
ear muffs electronic ear muffs hearing protection noise-canceling headsets best passive ear muffs best electronic ear muffs ear plugs vs ear muffs how to calculate NRR what is NRR OSHA 1910.95
Frequently Asked Questions
What is the actual NRR of the Dr.meter ear muffs?
The certified Noise Reduction Rating is NRR 27 (ANSI S3.19). The '31dB' shown in the marketing title is not the ANSI NRR — use 27 for any OSHA or hearing-loss-prevention calculation.
Why does the title say 31dB but the rating is NRR 27?
Manufacturers sometimes headline an SNR-style or lab figure for marketing. The number that matters for protection is the ANSI S3.19 NRR, which is 27. We frame the listing around 27 so you don't over-estimate coverage.
How much noise will these really block?
Less than the label. Real-world attenuation is always lower than the printed NRR once fit and seal are accounted for. A common approach is to derate NRR 27 by roughly half (or by 7 dB per OSHA's method) for everyday planning, which lands you in the mid-teens of effective dB.
Are these passive or electronic ear muffs?
They are passive muffs — they reduce noise through cushioning and sealing only. There is no sound amplification, Bluetooth, or radio. If you need to hear conversation or range commands amplified, look at our electronic ear muffs instead.
Do they fit both adults and kids?
Yes. The adjustable over-the-head headband sizes down for children and out for adults, which is why this pair is popular for family, study, and sensory use as well as work.
Can I use these to meet OSHA hearing requirements?
Possibly, depending on your exposure. Under OSHA 29 CFR 1910.95 you must reduce your time-weighted average to safe levels using the derated NRR. Confirm coverage with our OSHA 1910.95 guide before relying on them on a regulated site.
Are these enough for shooting?
For spectators, rimfire, and outdoor support, NRR 27 is reasonable. For centerfire, indoor ranges, or sustained shooting, step up to a 30–33 NRR muff or double up with plugs. See our best electronic ear muffs for amplified shooting options.
Can these mount on a hard hat?
No. This is an over-the-head model and is not cap-mount compatible. For hard-hat work you need a cap-mount muff with the matching slot adapter.
Are they dielectric / safe around electrical work?
A dielectric rating is not specified for this model, so do not assume electrical insulation. For electrical environments choose a muff explicitly labeled dielectric/electrically insulated.
Should I pick muffs or plugs?
It depends on the task, fit, and comfort. Muffs are faster on and off and seal consistently; plugs reach higher NRRs and fit under helmets. Our ear plugs vs ear muffs guide breaks down when to use each, including doubling up.
How do I know if NRR 27 is enough for my noise level?
Measure or estimate your exposure in dB, then subtract the derated NRR. Our how to calculate the NRR you need walkthrough shows the math; if you land above safe limits, go higher-NRR or double up.
How do these compare to other passive muffs you sell?
They're a mid-NRR, adjustable, battery-free option that fits adults and kids. For passive alternatives and rankings by use case, browse our ear muffs collection and the best passive ear muffs guide.
Written by Steven Eaton, WC Safety Editorial. Specifications sourced from Dr.meter published data. Compare the range in hearing protection.
WC Safety is an independent PPE retailer and Amazon Associate; no paid placement. Match the product to your specific hazard and follow your site PPE program.
Brand / Vendor
Dr.meter
Model / SKU
FM-1B
Product Type
Earmuffs
Price
$18.75 (Amazon)
Rating
4.62 / 5 — 8 reviews
Availability
Check current availability on Amazon
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Verified Buyer Reviews
Customer Reviews
★★★★☆4.5 / 5· 3,235 ratings on Amazon
★★★★★
Monster jam ready!
These ear muffs are perfect for Monster Jam! Great noise reduction that actually works in a loud arena environment without being uncomfortable. Fit well and stayed in place the whole show. Great value — would definitely bring these again and recommend for any loud event or venue.
Verified Purchaser · June 15, 2 · ✓ Amazon Verified Purchase
★★★★★
Good choice
Very pleased with these inexpensive ear muffs. They are comfortable and do a good job of noise cancelling.
Verified Purchaser · June 24, 2 · ✓ Amazon Verified Purchase
★★★★★
Great noise reduction!
I absolutely love these, they cut out a great deal of sound, I found them to be comfortable, although know that in order to really work they would have to fit somewhat snugly. I am a smaller person, but these are adjustable. Doesn't hurt that they are pretty cool looking. Will definitely help get a better night's rest if you are in a noisy environment.
Verified Purchaser · June 19, 2 · ✓ Amazon Verified Purchase
★★★★☆
very helpful when walking in noisy environment
I bout these to wear while walking in a mall in winetertime. Losts of noise, music which I want to drown out while I listen to music/podcasts. I wear hearing aids, so I hear directly from my cell phone into my hearing aids. Usingthese headphones cuts down on mall noise so I can listen to music/stories etc with much less interference. It doesn't suppress the surrounding noise completely. I can turn volume down about one-third because distracting noise is reduced. These are also very large, so they fit easily over my hears and behind-the-ear hearing aids. They are also comfortable enough. Only drawback is that they don't drown out 90% of outside noise rather than maybe 50-60////////////5
Verified Purchaser · December 3 · ✓ Amazon Verified Purchase
★★★★★
Great job of keeping noise out
Everything is as shown in description. Good quality and adjustable. I am an adult and the only thing I may need to get used to is that the fit is a bit tight. Meaning, it squeezes my head a bit. My head is not huge, it is an average size but it is a bit tight. Otherwise, they do an amazing job in noise reduction. Even better than the more expensive brand I have that starts with the letter "3". We'll see how long these last. I am using them while operating my mowers and blowers and so far so good.
Verified Purchaser · June 26, 2 · ✓ Amazon Verified Purchase
★★★★★
Highly recommend these for noise reduction.
There are so many of these listed, it was hard to pick. I picked the right ones. I use them for ear protection when using my compressor and grinding steel. They really work. It's completely silent. The price was right as well.
Verified Purchaser · April 28, · ✓ Amazon Verified Purchase
★★★★★
Yes, recommend
These are great for the purpose. Just sound-cancelling ear "muffs," plain and simple, with no fancy schmancy bluetooth or wired crap, and they fit fine. If you live by a busy street, with noisy neighbors or barking dogs, and you just want quietude to work on the computer or to read/study, these are the ticket! Adjustable and not too tight, unless you have a bigger head. If so, they will probably feel too tight. Good price.
Verified Purchaser · April 7, 2 · ✓ Amazon Verified Purchase
★★★☆☆
They're fine for the price
These low-price muffs have good noise reduction and seem well made. I wear a size Large motorcycle helmet (not XL, not XXL) and these just barely fit when adjusted all the way out. I only use them for mowing the lawn and other loud jobs around the house so I don't know how comfortable they would be for multi-hour use. But for 45 minutes or an hour they're fine.
Verified Purchaser · May 25, 20 · ✓ Amazon Verified Purchase
Showing 8 of 3,235 Amazon reviews.
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