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Brand: Moldex
Moldex MX-6 6130 High-Attenuation Earmuff, NRR 30 dB
Description
An over-the-head earmuff for high-noise industrial areas
The Moldex MX-6 6130 is an over-the-head earmuff with a cushion-ribbed, overmolded headband and larger ear cushions meant to fit most ears. Of the three MX models it is the one Moldex rates at NRR 30 dB, and together with the cap-mounted MX-7 it has the waffled cup foam that Moldex credits for the higher attenuation. The cups pivot, the wire frame holds its position, and the glossy shell wipes clean.
The product page lists Czech Republic as country of origin, a 5 year shelf life, SAI approval and AS/NZS 1270:2002; the NRR is tested to ANSI S3.19-1974. The headband and cushions are PVC-free.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Moldex-Metric, 6130 MX-6 Earmuff |
| Wearing style | Over-the-head headband |
| Noise Reduction Rating (NRR) | 30 dB, tested to ANSI S3.19-1974 |
| Mean attenuation at 125 to 1000 Hz | 21.8, 25.6, 33.5, 37.7 dB |
| Mean attenuation at 2000 to 8000 Hz | 40.7, 42.6, 43.6, 44.6, 43.2 dB (2000, 3150, 4000, 6300, 8000 Hz) |
| Standard deviation, 125 Hz to 8000 Hz | 2.5, 1.6, 2.0, 3.1, 2.8, 3.7, 2.8, 3.2, 3.3 dB |
| Cup foam | Waffled cup foam (MX-6 and MX-7) |
| Standards listed on product page | ANSI S3.19-1974; AS/NZS 1270:2002; SAI approved |
| Pack / case | 1 per box; 10 boxes per case |
| Replacement hygiene kit | 6135 (MX-6 and MX-7), 1 pair per bag, 20 bags per case |
| Origin / shelf life | Czech Republic; 5 years |
| Model | Part number | Style | NRR |
|---|---|---|---|
| MX-5 | 6120 | Headband | 27 dB |
| MX-6 | 6130 | Headband, waffled cup foam | 30 dB |
| MX-7 | 6140 | Cap mounted, waffled cup foam | 28 dB |
Choosing between MX-5, MX-6 and MX-7
For a head-worn muff with the highest rating of the three, choose the MX-6. If workers wear a hard hat, the MX-7 cap-mounted version is the Moldex alternative and it has to be fitted to a correctly adjusted helmet: Moldex warns that any contact between helmet suspension and the cup reduces protection. The MX-5 has the lowest NRR and no waffled foam.
Moldex instructs users to replace cushions and foam inserts at least twice a year for hygiene and safety, using the 6135 hygiene kit for the MX-6. Anything that interferes with the cushion seal, such as safety-glasses temples or respirator straps, reduces protection significantly, so check fit with the other PPE worn. Over-protection can be dangerous, since the wearer must still hear warning signals.
Documents and quotation
The attached Moldex data sheet covers MX-5, MX-6 and MX-7 with attenuation tables, instructions and ordering information. Moldex states that earmuffs must be used within a hearing conservation programme that complies with local rules, so confirm that an ANSI S3.19 NRR meets your site standard before ordering. For a quotation give the part number, the quantity and any hygiene kits. Related products: hearing protection and the published 3M Peltor X5A earmuffs.
Datasheets & Documents
- Datasheet Moldex MX Series earmuff data sheet (manufacturer, EN, 6120-709 Rev C 2/19) Download
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About brand
Moldex is a US maker of hearing and respiratory protection, based in Culver City, California, with core products manufactured in the USA. Its range covers disposable foam earplugs, reusable earplugs, earmuffs, disposable particulate respirators and reusable half-mask and full-face respirators with cartridges and filters. Seven Star LLC, an independent supplier in Muscat, sources Moldex products for industrial users in Oman and the GCC.
Moldex products listed here
The Moldex pages on this site cover the Mellows foam earplug, the MX-6 earmuff, the 2200 N95 disposable respirator and the 7000 Series half mask and 9000 Series full-face respirators. Each page carries the data from the Moldex datasheet, including approvals as printed.
Where Moldex protection is used
Fabrication, grinding and welding shops, construction, maintenance and plant work, where noise and airborne dust or fume call for personal protective equipment backed by a written hearing or respiratory protection programme.
Ordering Moldex products: what we need
State the model number, size, pack quantity, and for respirators the cartridge or filter combination. Moldex respirators in these pages carry NIOSH approvals, so check that they satisfy the standard required on your site.
Related products
Frequently Asked Questions
What is the NRR of the MX-6?
30 dB, tested to ANSI S3.19-1974, according to the Moldex MX Series data sheet.
How do MX-5, MX-6 and MX-7 differ?
MX-5 (6120) is NRR 27, MX-6 (6130) is NRR 30, and MX-7 (6140) is the cap-mounted version at NRR 28; MX-6 and MX-7 have waffled cup foam.
How often should cushions be replaced?
Moldex instructs replacing cushions and foam inserts at least twice a year; the hygiene kit for the MX-6 is part number 6135.
Can the MX-6 be worn with a hard hat?
The MX-6 is an over-the-head muff; for hard hats Moldex offers the cap-mounted MX-7 (6140), which must be fitted without helmet contact.
Is the NRR the protection achieved in use?
No. Moldex states the laboratory data are for comparison and protection in field use is often significantly lower.
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