MSA V-Gard Helmet-Mounted Ear Defenders (10190356) — NRR 22 Cap-Mounted Earmuffs, Enhanced Comfort

As an Amazon Associate, WC Safety earns from qualifying purchases. This does not affect the price you pay.

About the MSA V-Gard Helmet-Mounted Ear Defenders

This is cap-mounted hearing protection from MSA's V-Gard line: two sealed ear capsules on spring arms that insert into the side accessory slots of a V-Gard or ThermalGard cap-style hard hat and swing down over your ears. The enhanced-comfort design uses foam-injected pads that cushion the outer ear, with a recessed interior foam that does not touch the ear itself, plus MSA's custom sealing rings for consistent attenuation. Because the muffs live on the helmet, they are always there when you flip your hard hat on — no separate headband to carry, lose, or forget.

The rating to plan around in the United States is a Noise Reduction Rating of 22 dB. You will see a figure of 28 dB on European and UK listings — that is the SNR (Single Number Rating) under EU/ISO test methods, not the US NRR, and the two scales are not interchangeable. This 10190356 is the green color-coded, lower-attenuation option in the V-Gard cap-mounted family, so if your noise survey calls for more protection, look at a higher-attenuation muff or plan on dual protection. For help deciding whether muffs or plugs suit your job, our earplugs vs earmuffs guide is a good starting point, and when do you need hearing protection explains the exposure thresholds that trigger a program.

Fit & Compatibility

These ear defenders are helmet-mounted only — there is no headband version of this part, so they require a compatible MSA cap to function. They are engineered for the MSA slot system, which is not the same as 3M's P3E slots or other manufacturers' designs, so treat them as V-Gard/ThermalGard accessories rather than a universal cap-mount muff. If you run a V-Gard cap or full-brim, an MSA V-Gard full-brim hard hat, or the MSA Super-V cap-style helmet, they drop right in; if your crew wears another brand, buy that brand's cap-mounted hearing protection instead. For choosing the helmet itself, see our best cap-style hard hat guide and the V-Gard vs Skullgard comparison.

Pros & Cons

Specifications

Related Guides

Related Products

Frequently Asked Questions

What is the NRR of the MSA 10190356, and why do some listings say 28 dB?

For the US market the Noise Reduction Rating (NRR) is 22 dB. The 28 dB figure you will see on European listings is the SNR (Single Number Rating) used under EU/ISO standards — it is a different measurement scale and is not interchangeable with NRR. If you are buying in the United States, use the NRR of 22 dB for your hearing-conservation calculations, not the SNR.

Which hard hats do these ear defenders fit?

They clip into the side accessory slots of MSA V-Gard and ThermalGard cap-style hard hats and helmets. They are designed around MSA's slot geometry and custom sealing rings, so plan to mount them on an MSA V-Gard cap or compatible MSA helmet rather than a generic hard hat.

Can I use these as standalone headband earmuffs without a hard hat?

No. This is a helmet-mounted product — the ear cups ride on spring arms that insert into a hard hat's accessory slots, and there is no headband. If you need hearing protection without a hard hat, choose an over-the-head or behind-the-head earmuff instead.

Do they fit 3M, Bullard, or other brands' slotted hard hats?

Not reliably. Slot systems are not universal — MSA's accessory slots differ from 3M's P3E/30 mm slots and other manufacturers' designs. These are built for the MSA V-Gard/ThermalGard system, so if you run 3M or Bullard helmets, use that brand's cap-mounted muffs instead of forcing a cross-brand fit.

Is an NRR of 22 dB enough for my job?

It depends on your measured noise level. NRR 22 suits many moderate industrial environments, but the lab NRR overstates real-world protection, so OSHA recommends derating it. For very high noise, or if a derated NRR still leaves you above 85 dBA TWA, step up to a higher-attenuation muff or wear earplugs under the muffs. Base the decision on a sound-level measurement, not a guess — our best hearing protection guide compares attenuation levels across muffs and plugs.

What is the difference between cap-mounted and over-the-head earmuffs?

Cap-mounted muffs attach to your hard hat and swing down over your ears, which is convenient when head protection is already required and keeps everything on one platform. Over-the-head muffs use a headband and often provide slightly higher clamping force and attenuation. If you must wear a hard hat anyway, cap-mounted keeps your hands free and the muffs always with the helmet.

How do I attach and adjust them on a V-Gard cap?

Insert each ear-cup arm into the accessory slot on the corresponding side of the V-Gard cap until it clicks, then lower the cups over your ears and adjust the arm height so the cushions fully surround each ear with even pressure. There should be no gap between the cushion and the side of your head, and nothing — glasses temples, hair, a hood — should break the seal.

Can I combine these with earplugs for more protection?

Yes, for high-noise work dual protection (earplugs under the muffs) is a recognized approach — but the protection does not simply add. NIOSH suggests adding about 5 dB to the higher of the two device ratings rather than summing the NRRs. Use dual protection when a single device, properly derated, does not get you below your exposure limit. Our construction earplug guide covers plug options.

How do I know when to replace the ear cushions?

Replace the foam cushions when they harden, crack, flatten, or stop sealing evenly — worn cushions are the most common reason field attenuation drops below the rating. Inspect them regularly, keep them clean, and treat cushion replacement as routine maintenance rather than waiting for visible damage.

Do these interfere with a face shield or visor on a V-Gard?

The cap-mounted muffs and MSA's slot-mounted V-Gard visors and face shields are designed to share the V-Gard accessory system, but slot capacity is finite — confirm your specific visor frame and muff can both mount on your cap before relying on the combination. On some setups you may need MSA's accessory system frame to run both at once.

What does the green color coding mean?

MSA color-codes its V-Gard cap-mounted hearing line by attenuation level for quick identification. This green-coded model is the lower-attenuation option in that line at NRR 22. If your program standardizes on a specific protection level, use the color coding to keep the right muffs matched to the right tasks.

Are these comfortable enough to wear all day?

They are the enhanced-comfort version of the V-Gard line, with foam-injected pads that cushion the outer ear and a recessed interior foam that does not press on the ear itself. Comfort still depends on correct arm-height adjustment and cushion condition — a muff that is too loose leaks noise, and one adjusted too tight becomes uncomfortable over a shift.

Are these earmuffs electronic or passive?

They are passive earmuffs — they attenuate noise mechanically with sealed cups and foam, with no electronics, microphones, or level-dependent circuitry. If you need to hear speech or machinery cues between loud bursts, look at an electronic (level-dependent) muff instead; for steady industrial noise, a passive muff like this is the standard choice.