Moldex 6646 Goin' Green PlugStation Review: 250-Pair Earplug Dispenser (NRR 33)
Moldex 6646 Goin' Green PlugStation Review: PVC-Free Earplug Dispensing for Sustainable Facility Programs
For safety managers operating in facilities pursuing LEED certification, green purchasing policies, or ESG-aligned procurement, the earplug dispenser on the wall is a visible signal. The Moldex 6646 Check Price on Amazon → Goin' Green PlugStation makes that signal substantive: it dispenses Goin' Green earplugs, Moldex's soft foam plug formulated without polyvinyl chloride (PVC), using a Smart Fit foam that conforms to the ear canal without the harsh recovery force common in standard foam earplugs. NRR 33. Green color. And the environmental claim is real, not marketing — PVC elimination removes chlorinated polymer content from every pair your facility consumes.
OSHA 29 CFR 1910.95: Hearing conservation programs must provide hearing protection at no cost to workers exposed at or above 85 dB TWA. The Goin' Green earplugs at NRR 33 meet the attenuation requirements of virtually all single-protection industrial scenarios.
What Are Goin' Green Earplugs?
Goin' Green is Moldex's PVC-free foam earplug line. Standard foam earplugs — including many industry-standard cylindrical plugs — are formulated from polyurethane foam or, in some cases, PVC-blended materials. Moldex's Goin' Green uses a proprietary "Smart Fit" foam formulation that is:
- PVC-free: No polyvinyl chloride in the foam matrix. This is relevant for facilities with halogen-restricted purchasing policies, green chemistry programs, or materials disclosure requirements.
- Soft and low-pressure: Smart Fit foam expands gently after insertion, creating a comfortable seal without the aggressive outward pressure of high-recovery foams. Workers report lower ear fatigue over extended wear periods compared to standard foam earplugs.
- Green colored: The distinctive green color allows visual compliance verification during supervisor walk-throughs, similar to the high-visibility function of SparkPlugs yellow-green, though in a foam rather than multi-flange format.
For comparison, the Mellows earplug (available in the Moldex 6846 PlugStation) prioritizes ultra-low pressure at NRR 30. The Pura-Fit (available in the Moldex 6844 PlugStation) uses a smooth-skin coating for allergen reduction. Goin' Green sits in between: soft comfort with maximum NRR 33 attenuation and PVC-free material chemistry.
Goin' Green Specifications
| Specification | Detail |
|---|---|
| SKU | 6646 (PlugStation) |
| Earplug model | Goin' Green |
| NRR | 33 dB |
| Real-world attenuation (NRR÷2) | ~16.5 dB |
| Style | Cylindrical foam (Smart Fit) |
| Color | Green |
| Material | PVC-free foam |
| Corded | No (uncorded; see 6647 for corded) |
| Dispenser capacity | 250 pairs |
| Wall-mount bracket | Included |
| NIOSH listed | Yes |
Why PVC-Free Matters for Facility Procurement
PVC (polyvinyl chloride) is one of the most widely scrutinized polymers in green chemistry frameworks. Programs like the Cradle to Cradle certification, the U.S. Green Building Council's LEED materials credits, and corporate restricted substances lists (RSLs) frequently target halogenated polymers, of which PVC is the most common.
Switching your earplug dispenser from a PVC-containing format to Goin' Green produces a documentable reduction in halogenated polymer consumption proportional to your annual earplug volume. For a facility consuming 50,000 pairs per year, this is a meaningful entry in your environmental impact reporting — and it is a change that costs nothing in compliance effectiveness, since the Goin' Green NRR 33 matches the highest-rated foam earplugs available.
LEED Purchasing Credit Applicability
LEED v4.1 Existing Buildings (LEED O+M) includes a Purchasing credit (Purchasing — Ongoing Consumables) that rewards facilities for procuring products meeting environmental standards. While earplugs as a category may fall under facility maintenance consumables rather than specific product categories, the documentation of PVC-free procurement supports broader Environmentally Preferable Purchasing (EPP) programs that LEED O+M and ISO 14001 environmental management systems recognize.
Smart Fit Foam vs. Standard Foam: Comfort and Compliance
Worker acceptance is the single largest compliance variable in any hearing conservation program. An earplug that workers find uncomfortable will be inserted incorrectly, removed early, or not worn at all — and the highest NRR in the world provides zero protection in a pocket. Smart Fit foam's gentler recovery force directly addresses this.
| Foam Type | Recovery Force | NRR | Best For |
|---|---|---|---|
| Standard polyurethane | High | 29–33 | Short-duration wear |
| Goin' Green Smart Fit | Medium-low | 33 | Extended wear, green programs |
| Mellows (6846) | Very low | 30 | Maximum comfort, ear sensitivity |
| Pura-Fit (6844) | Medium | 33 | Latex/allergen sensitivity |
NRR 33 Performance: OSHA Compliance Calculations
| Noise Level | Goin' Green Effective Exposure (NRR÷2) | OSHA Status |
|---|---|---|
| 90 dB | 73.5 dB | Compliant |
| 95 dB | 78.5 dB | Compliant |
| 100 dB | 83.5 dB | Compliant |
| 105 dB | 88.5 dB | Monitor |
| 110 dB | 93.5 dB | Double protection required |
For NIOSH guidance on hearing protection attenuation requirements, see our NIOSH standards guide.
Ideal Facilities for the 6646 Goin' Green PlugStation
- LEED-certified or LEED-pursuing facilities: Documentable PVC-free procurement for environmental credit programs.
- Pharmaceutical and biotech manufacturing: Restricted substances policies often target halogenated materials.
- Food processing with green procurement mandates: Corporate sustainability commitments extend to all consumable PPE.
- Electronics manufacturing: RoHS and REACH frameworks condition procurement culture around halogen reduction.
- Educational institutions and government facilities: Environmentally Preferable Purchasing (EPP) policies apply to all consumable purchases.
Corded Variant: The 6647 PlugStation
If your facility needs Goin' Green earplugs in corded format — for workers moving between noise and non-noise zones — see the Moldex 6647 Goin' Green PlugStation. The corded version provides the same Smart Fit foam and PVC-free chemistry with the neck-wear convenience of a tethered pair.
How to Refill the Moldex 6646 PlugStation
- Press both front-panel release tabs simultaneously and open the dispenser door.
- Remove any remaining Goin' Green pairs from the magazine channel.
- Load Goin' Green refill pairs vertically into the channel. Pairs should load without forcing.
- Close the panel until both tabs click into place.
- Test-dispense one pair to confirm smooth operation.
Use only Goin' Green refill pairs in the 6646. Do not load SparkPlugs, Pura-Fit, or other Moldex earplug models — each PlugStation is channel-matched to its specific earplug geometry.
PlugStation vs. EcoStation vs. Bulk Box
| Feature | 6646 PlugStation | EcoStation (bulk bag) | Bulk Box |
|---|---|---|---|
| Material | PVC-free Goin' Green | Depends on refill model | Depends on model |
| Dispense method | Individual pairs | Hopper bulk | Open box |
| Hygiene | High | Medium | Low |
| Wall-mount | Yes | Yes | No |
| Cost per pair | Higher | Lower | Lowest |
If your facility needs high-volume bulk dispensing, the Moldex 6702 Softies EcoStation and Moldex 6706 Pura-Fit EcoStation are bulk-bag alternatives for foam earplugs.
Frequently Asked Questions
What does "Goin' Green" mean — is the earplug actually eco-friendly?
Yes, the Goin' Green name reflects a specific material difference: the earplug foam is formulated without PVC (polyvinyl chloride), a halogenated polymer targeted by green chemistry programs. This is a documentable material change, not purely marketing.
What is the NRR of Goin' Green earplugs?
NRR 33, the same as SparkPlugs and Pura-Fit. Under NIOSH's NRR÷2 derating, this provides approximately 16.5 dB of real-world noise reduction.
How does Smart Fit foam differ from standard foam?
Smart Fit foam uses a lower-recovery-force formulation that expands more gently after insertion. This reduces the outward pressure felt in the ear canal compared to high-recovery polyurethane foams, improving comfort during extended wear without sacrificing NRR.
Does PVC-free foam affect the NRR rating?
No. The NRR is a lab-measured acoustic performance figure. Goin' Green achieves NRR 33 without PVC — matching the highest-rated earplugs in the Moldex lineup. PVC-free is a material chemistry change, not a performance compromise.
Is the 6646 PlugStation LEED-credit eligible?
Goin' Green's PVC-free formulation supports Environmentally Preferable Purchasing (EPP) documentation relevant to LEED O+M purchasing credits and ISO 14001 procurement records. Consult your LEED project administrator for specific credit applicability.
What is the capacity of the 6646 PlugStation?
250 pairs. For higher-volume Goin' Green dispensing at the same station, consider running two 6646 dispensers side by side.
Is there a corded version of the Goin' Green PlugStation?
Yes. The Moldex 6647 PlugStation dispenses corded Goin' Green earplugs, ideal for workers who move between noise and non-noise zones.
Are Goin' Green earplugs latex-free?
Yes. Goin' Green earplugs are latex-free. The PVC-free foam formulation does not contain latex or natural rubber.
How do I insert Goin' Green foam earplugs correctly?
Roll the earplug between clean fingers to compress it into a thin cylinder. Pull the outer ear up and back, insert the compressed plug, and hold it with a finger for 20–30 seconds while the Smart Fit foam slowly expands to fill the canal. A proper fit should significantly muffle ambient noise.
What OSHA standard requires hearing protection in my facility?
OSHA 29 CFR 1910.95 requires a hearing conservation program at 85 dB TWA and mandatory hearing protection at 90 dB TWA for workers. The 6646 PlugStation earplug at NRR 33 satisfies the attenuation requirement for most industrial environments.
Can I use Goin' Green earplugs in pharmaceutical clean rooms?
The PVC-free formulation may satisfy material restrictions in pharmaceutical environments, but verify against your facility's specific clean-room contamination and material protocols. The PlugStation's individual dispensing format supports clean-room hygiene better than open bulk-bag dispensers.
How does the green color help with compliance monitoring?
Green is a visually distinctive earplug color that supervisors can identify from 10–15 feet during a floor walk-through. This allows non-disruptive compliance observation without stopping workers, satisfying the observation requirement of OSHA 1910.95(i)(4).
Does the 6646 include a wall-mount bracket?
Yes. The wall-mount bracket is included. Mount at approximately 60 inches from the floor at each hazard-zone entry point. Two anchor screws are required (not included).
What is the refill pair for the 6646 PlugStation?
Moldex Goin' Green uncorded refill pairs are the correct refill for the 6646 PlugStation. Use only model-matched refills — cross-model loading will jam the dispensing mechanism.
How does the 6646 compare to the Pura-Fit PlugStation?
Both use soft foam at NRR 33. The Goin' Green (6646) emphasizes PVC-free material chemistry; the Pura-Fit (6844) emphasizes a smooth skin-friendly surface coating. If your priority is green procurement, choose 6646. If your priority is allergen-sensitive worker comfort, choose 6844.
Where can I buy the Moldex 6646 Goin' Green PlugStation?
Check current pricing on Amazon Check Price on Amazon → or browse the WC Safety earplug collection. See the full hearing protection collection for all options.
Also explore: respirators, safety gloves, hard hats, safety glasses.