Moldex 6646 Goin Green Plugstation Dispenser Review

Moldex 6646 Goin' Green PlugStation Review: PVC-Free Earplug Dispensing for Sustainable Facility Programs

Published May 13, 2026 · Last updated July 27, 2026

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.

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

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.

NRR 33 Performance: OSHA Compliance Calculations

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

1. Press both front-panel release tabs simultaneously and open the dispenser door.
2. Remove any remaining Goin' Green pairs from the magazine channel.
3. Load Goin' Green refill pairs vertically into the channel. Pairs should load without forcing.
4. Close the panel until both tabs click into place.
5. 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

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

Also explore: respirators, safety gloves, hard hats, safety glasses.

Pros & Cons

Who It's For

Buy it if:

• Safety managers running LEED-pursuing, ISO 14001, or green-procurement facilities that need documentable PVC-free PPE
• Operations standardizing a single high-NRR foam plug at every hazard-zone entry with hygienic wall dispensing
• Pharma, biotech, and electronics plants whose restricted-substances lists target halogenated polymers
• Facilities prioritizing worker comfort and extended-wear acceptance over absolute lowest cost-per-pair

Look elsewhere if:

• Cost-driven programs at very high annual volume that should compare bulk-box or EcoStation bulk-bag foam
• Food, pharma fill-line, or any area mandating metal-detectable earplugs
• Workers who repeatedly transition between noise and non-noise zones and need a corded, around-the-neck plug

Related Resources

• foam ear plugs
• hearing protection
• nrr 33 ear plugs
• reusable earplugs
• disposable ear plugs
• what is nrr noise reduction rating explained
• best foam ear plugs
• highest nrr ear plugs
• ear plugs vs ear muffs
• how to insert foam earplugs
• how to calculate the nrr you need
• moldex 6604 sparkplugs
• moldex 6654 sparkplugs corded
• moldex 6615 sparkplugs metal detectable
• moldex 6684 sparkplugs jar
• moldex 6800 pura fit
• moldex 6900 pura fit corded
• moldex 6600 softies
• moldex 6650 softies corded

Common questions

When do I need plugs AND muffs together?

When the numbers say so: derate the label (minus 7 dB, halve the rest) and compare against the measured 8-hour exposure. Above 85 dBA after derating, wear plugs and muffs together; the pairing adds roughly 5 dB over the stronger of the two.

How do I know the plug is actually sealed?

Use your own voice as the gauge: sealed ears make it boom (the occlusion effect) and mute the room. No boom, no seal — and most of the label rating is absent until you reinsert properly.

Sources. Requirements referenced here come from OSHA 29 CFR 1910 and the NIOSH recommendations. Where a consensus standard governs, the ANSI document is named in the text.

Related reference

Related reading in this area: 3m 1100 foam ear plugs, cordless (uncorded) - nrr 29, 200-pair box, 3m 1110 foam earplugs nrr 30 200 pairs, moldex pura-fit vs howard leight max-1: which nrr 33 ear plug?, and best metal detectable ear plugs.

Why trust WC Safety

WC Safety is an independent, affiliate-supported review site. It is not a retailer: it holds no inventory, takes no orders, and earns only from qualifying purchases through clearly marked links — which never changes what a product is rated to do. Standards language is taken from the regulation text directly, and ratings are reported as the manufacturer publishes them. We run no laboratory and perform no testing of our own. Where published sources disagree, we say so and plan on the conservative figure rather than the flattering one.

Our methodology

Figures come from the regulation and the published specification, in that order. Derated numbers are calculated, not estimated. Nothing here is presented as a measured result, because we measure nothing.

Researched and written by Steven Eaton, editor of WC Safety. Steven holds no safety certification and does not test products; this page compares what manufacturers and regulators publish, with the gaps in that record marked. Last reviewed August 2026.

Affiliate disclosure: as an Amazon Associate, WC Safety earns from qualifying purchases. WC Safety is not a retailer and takes no orders — links go to the seller, and the price you pay is unchanged.