Moldex MX-6 Over-The-Head Earmuffs, Black/Green, Large (6130)

Moldex MX-6 Over-The-Head Earmuffs (NRR 27) — Is the 6130 the Right Muff?

The Moldex MX-6 over-the-head earmuffs (catalog number 6130, large, black/green) are a passive hearing protector rated NRR 27 (ANSI S3.19) — a practical, comfort-first muff for shops, plants, landscaping crews, and general construction where you'll wear protection for a full shift. If you've already decided you want a Moldex MX muff and just need to confirm the MX-6 is the right one before you buy, this page lays out the specs, how it stacks up against its MX-5 and MX-7 siblings, and where it lands against other passive ear muffs in the catalog.

The MX-6 sits in the middle of the MX series: a roomy ear cup, a padded over-the-head band, and Moldex's PVC-free cushions for workers who can't stand the squeeze of a cheap muff by lunchtime. At NRR 27 it's a solid match for the upper-moderate noise band — think air tools, mowers, routers, and most plant-floor machinery — but it is not the highest-attenuation option in our hearing protection range. If you spend your day in genuinely punishing dBA, plan to combine it with foam plugs (covered in the FAQ below).

Quick answer: The Moldex MX-6 (6130) is an over-the-head passive earmuff rated NRR 27 (ANSI S3.19), built for all-day comfort in moderate-to-loud industrial noise — a step up in comfort from the MX-5 and an over-the-head alternative to the cap-mount MX-7.

Who Should Buy the Moldex MX-6

Choose the MX-6 if you want an over-the-head muff you can actually tolerate for eight hours and you work in the upper-moderate noise range. It's a natural fit for maintenance techs, fabricators, grounds crews, and anyone already standardizing on Moldex hearing protection. If you need the muff to clip into a hard hat, stop here and get the MX-7 cap-mount instead — the MX-6 is headband-only.

Moldex MX-6 Specifications

Note: NRR 27 is the laboratory rating under ANSI S3.19. Real-world attenuation is lower; OSHA's practical de-rating method subtracts 7 dB and halves the remainder, so plan your protected exposure conservatively. For the full breakdown, read NRR ratings explained.

MX-5 vs MX-6 vs MX-7: Which Moldex MX Muff?

All three live in the same Moldex MX earmuff family. The MX-5 is the budget over-the-head option, the MX-6 (this page) adds comfort and a bit more isolation, and the MX-7 swaps the headband for a hard-hat cap-mount. Pick by mounting first, then by NRR.

Decision rule: need it on a hard hat → MX-7. Want headband comfort for a full shift → MX-6. Watching the budget → MX-5. Browse the full lineup under ear muffs.

Fit & Compatibility

The MX-6 is a headband muff, so it is not compatible with hard-hat accessory slots — that's the MX-7's job. The over-the-head band adjusts to fit most adults, and the deep cup clears the temples of most safety eyewear without breaking the cushion seal. If you wear thick-arm glasses, expect a small attenuation penalty where the temple crosses the cushion — true of every passive muff, not just this one. For double protection in louder areas, the MX-6 layers cleanly over slim foam plugs such as the Howard Leight Laser Lite (NRR 32) or Moldex Pura-Fit (NRR 33). Make sure the plugs are inserted correctly first — see how to wear ear plugs correctly.

If your real problem is awareness — hearing a coworker, a forklift horn, or a range command — a passive muff like this one isn't the answer. Look at electronic ear muffs such as the Howard Leight Impact Sport, which amplify low-level sound and clamp down on the bang.

Moldex MX-6 Buyer FAQ

Affiliate disclosure: WC Safety is an Amazon Associate (partner tag wcsafety04-20). We may earn a commission on qualifying purchases made through links on this page, at no extra cost to you. Shipping and returns are handled by Amazon.