Moldex 6647 Goin' Green PlugStation Review: 500-Pair Earplug Dispenser (NRR 33)
Moldex 6647 Corded Goin' Green PlugStation Review: Enforcing No-Earplug-on-Floor Policies Without Sacrificing Comfort
Dropped earplugs create two problems: a slip hazard and a lost-protection event. In facilities with strict 5S or lean housekeeping standards, an earplug on the production floor represents a housekeeping violation, a potential contamination incident in food or pharma environments, and a compliance gap if the worker does not replace it. The Moldex 6647 Check Price on Amazon → Goin' Green PlugStation addresses this with corded versions of Moldex's PVC-free Smart Fit foam earplugs — when a worker removes their plugs during a communication break, the cord keeps the pair around the neck rather than at risk on the floor.
OSHA 29 CFR 1910.95: Workers exposed at or above 85 dB TWA must have hearing protection available. Workers at or above 90 dB TWA must wear it. In zone-transition facilities, corded earplugs dramatically reduce the practical barriers to re-donning protection when re-entering noise areas.
What Is the Moldex 6647 PlugStation?
The 6647 is a wall-mounted individual earplug dispenser loaded with 250 pairs of corded Goin' Green earplugs. The earplug body is identical to the uncorded version in the Moldex 6646 PlugStation: PVC-free Smart Fit foam, NRR 33, green color, latex-free. The cord — a hygienic polymer tether connecting the two earplug bodies — is the only functional addition. It is the same approach used in the Moldex 6644 corded SparkPlugs PlugStation, applied to a foam earplug format.
Specifications
| Specification | Detail |
|---|---|
| SKU | 6647 (PlugStation, corded) |
| Earplug model | Goin' Green (corded) |
| NRR | 33 dB |
| Real-world attenuation (NRR÷2) | ~16.5 dB |
| Style | Cylindrical foam (Smart Fit, PVC-free) |
| Color | Green |
| Cord type | Hygienic polymer tether (latex-free) |
| Dispenser capacity | 250 pairs |
| Wall-mount bracket | Included |
| NIOSH listed | Yes |
The "No Earplug on Floor" Policy: Why Corded Plugs Enforce It Passively
Implementing a no-earplug-on-floor policy through instruction alone requires active enforcement — supervisors must watch for dropped plugs and address violations. Corded earplugs enforce the same policy passively: because the plugs cannot fall independently of the cord, and the cord is worn around the neck, a removed pair hangs safely rather than landing on a production surface.
Facilities where this matters most:
- Food and beverage manufacturing: An earplug in a product stream is a foreign material incident under HACCP protocols. The cord physically prevents this scenario for earplugs removed between tasks.
- Pharmaceutical manufacturing: GMP environments require foreign particle controls. Corded earplugs reduce the probability of an earplug becoming a contaminant during handling.
- 5S / lean manufacturing floors: Dropped earplugs are a common 5S audit finding. Corded formats remove this finding vector.
- Slippery or wet floors (food processing, chemical plants): A foam earplug on a wet floor is a slip hazard. The cord eliminates the dropping mechanism.
Comfort Advantage for Frequent Removal and Re-insertion
Corded earplugs are removed more frequently than uncorded — precisely because the cord makes re-insertion easy and safe. This higher removal frequency makes earplug comfort during re-insertion more important than in a set-it-and-forget-it uncorded program.
Goin' Green's Smart Fit foam is particularly well-suited to frequent re-insertion:
- The low-recovery foam rolls down quickly without requiring sustained finger pressure.
- After removal, the foam returns to its natural shape within 30–60 seconds, ready for clean re-insertion.
- Workers wearing gloves can roll and insert Smart Fit foam more easily than high-recovery polyurethane foams that require more force to compress.
For workers who still find foam re-insertion difficult while gloved, see the Moldex 6875 Meteors PlugStation, which uses a flanged design with improved gloved-insertion ergonomics.
NRR 33 and OSHA Compliance
| Environment Noise Level | Effective Exposure (NRR÷2) | OSHA Status |
|---|---|---|
| 88 dB | 71.5 dB | Compliant |
| 95 dB | 78.5 dB | Compliant |
| 100 dB | 83.5 dB | Compliant |
| 107 dB | 90.5 dB | Consider double protection |
See the NIOSH standards guide for the full derating methodology. For environments above 105 dB, pairing earplugs with earmuffs from the hearing protection collection provides additional attenuation.
PVC-Free in a Corded Format: Environmental Procurement Value
The sustainability argument for Goin' Green (covered in depth in the 6646 uncorded review) applies equally to the corded 6647. In a corded program, however, there is an additional environmental angle: corded earplugs reduce per-pair consumption, because workers who keep the pair around their neck throughout the shift draw only one pair — not 1.5 or 2 as is common in uncorded programs with zone transitions.
Lower consumption volume means less material disposal per shift. For a green procurement program, this pairs with the PVC-free formulation to create a compounding environmental benefit.
How to Refill the Moldex 6647 PlugStation
- Depress both front-panel release tabs simultaneously and swing the door open.
- Remove any remaining corded Goin' Green pairs from the magazine channel.
- Load corded Goin' Green refill pairs into the channel with the cord loop oriented toward the dispense opening. Pairs should stack freely.
- Close the panel until both tabs click into place.
- Pull one pair to confirm smooth dispensing.
Use only corded Goin' Green refill pairs. Cross-loading uncorded pairs or a different earplug model will jam the dispensing mechanism.
PlugStation vs. EcoStation vs. Bulk Box
| Feature | 6647 PlugStation | EcoStation (bulk) | Bulk Box (corded) |
|---|---|---|---|
| Material | PVC-free Goin' Green corded | Varies by model | Varies |
| Dispense method | Individual pairs | Hopper bulk | Open box |
| Floor-drop prevention | High (corded) | Low | Low |
| Hygiene | High | Medium | Low |
| Cost per pair | Higher | Lower | Lower |
For high-volume foam earplug dispensing via EcoStation, see the Moldex 6702 Softies EcoStation and Moldex 6706 Pura-Fit EcoStation.
Frequently Asked Questions
What is the NRR of the 6647 Goin' Green corded earplugs?
NRR 33. The cord does not affect acoustic performance. NIOSH NRR÷2 derating gives approximately 16.5 dB real-world attenuation.
How does the cord prevent earplugs from falling on the floor?
The cord connects both earplug bodies. When a worker removes the plugs, the pair hangs from the neck cord rather than being set down or pocketed. Workers cannot drop a corded pair to the floor without also removing the cord from around their neck.
Is PVC-free foam less durable than standard foam?
No. PVC-free refers to the polymer chemistry of the foam, not its durability. Goin' Green's Smart Fit foam is designed for the same daily-use demands as standard polyurethane foam earplugs. In corded programs where pairs are reused through the shift, the foam recovers cleanly between insertions.
Can Goin' Green corded earplugs be cleaned and reused across shifts?
Technically yes — the foam is washable. However, most programs establish a one-pair-per-shift policy for hygiene. In corded programs, workers are more likely to bring their pair through the full shift, so reuse across shifts is less common than single-shift use.
Are the cords on the 6647 earplugs a machinery entanglement hazard?
Like all corded PPE, the cord must not contact rotating machinery. Establish a facility protocol requiring workers to tuck the cord inside their collar during machine operation. This is standard procedure for corded hearing protection in any format.
Does the 6647 come with a wall-mount bracket?
Yes. The wall-mount bracket is included. No additional hardware purchase is needed for the dispenser. Two anchor screws are required for wall installation.
How many pairs does the 6647 hold?
250 pairs. This is identical to the uncorded 6646. For higher-capacity corded Goin' Green dispensing at a single point, two 6647 dispensers can be mounted side by side.
What OSHA standard governs hearing protection availability?
OSHA 29 CFR 1910.95 requires hearing protectors to be made available at no cost to workers exposed at or above 85 dB TWA, and mandates wearing at or above 90 dB TWA. The 6647 PlugStation at NRR 33 meets the attenuation requirements for these thresholds.
How does the 6647 differ from the 6648 Camo Plugs PlugStation?
The 6647 uses corded Goin' Green foam (PVC-free, NRR 33, green). The Moldex 6648 uses Camo Plugs (multi-flange, NRR 33, camouflage). If comfort of foam insertion and sustainability are priorities, choose 6647. If multi-flange design or aesthetic fit with military/outdoor environments matters, choose 6648.
Are NIOSH standards met by Goin' Green corded earplugs?
Yes. Moldex Goin' Green corded earplugs are NIOSH-listed under 42 CFR Part 84 with NRR 33.
Is the 6647 appropriate for pharmaceutical GMP environments?
The individual dispensing format and corded design (reducing floor-drop contamination risk) make the 6647 more suitable than open bulk dispensers for GMP environments. Verify against your specific contamination control SOP before final specification.
Can workers with latex sensitivities use the 6647?
Yes. Both the foam earplug and the cord are latex-free. The PVC-free Smart Fit foam does not contain natural rubber latex.
Does corded format increase or decrease compliance rates?
Studies of corded vs. uncorded earplug programs in zone-transition facilities consistently show higher compliance rates with corded formats. The primary mechanism: workers who remove plugs for communication can return them to the ears immediately without searching pockets or drawing a new pair.
How do I handle a torn or broken cord on a 6647 earplug?
If a cord breaks, the pair becomes functionally uncorded. Discard and replace with a fresh pair from the dispenser. Do not attempt to repair cords — compromised cords may not hold the plugs safely during neck-wear.
Where can I buy the Moldex 6647 PlugStation?
Check current availability on Amazon Check Price on Amazon → or browse the WC Safety earplug collection. See all hearing protection options including safety glasses, hard hats, and respirators.
What is the best insertion technique for corded Goin' Green earplugs?
Hold the cord clear of your hands. Roll the earplug between clean fingers to compress. Pull the outer ear up and back with the opposite hand. Insert the compressed plug and hold with one finger for 20–30 seconds while the Smart Fit foam expands. The cord will hang naturally once the plug is seated.
Explore all WC Safety PPE categories: hearing protection, earplugs, gloves, hard hats. See our in-ear hearing protection for shooting guide for range applications.
Disclosures & editorial standards
WC Safety participates in the Amazon Services LLC Associates Program. Outbound Amazon links are affiliate links. We accept no manufacturer payment, sponsorship, or product samples. This content is not medical, legal, or regulatory advice. Safety equipment selection is governed by applicable OSHA standards and your facility's safety program.
WC Safety participates in the Amazon Services LLC Associates Program. Outbound Amazon links are affiliate links. We accept no manufacturer payment, sponsorship, or product samples. This content is not medical, legal, or regulatory advice. Safety equipment selection is governed by applicable OSHA standards and your facility's safety program.