Moldex SparkPlugs Uncorded Earplugs – NRR 32 dB Hearing Protection (Box of 200)
Moldex SparkPlugs® Uncorded Foam Earplugs — NRR 33 dB | Box of 200
The Moldex SparkPlugs are among the highest-rated disposable foam earplugs available, with a Noise Reduction Rating of 33 dB measured per ANSI S3.19 — meeting OSHA 29 CFR 1910.95 hearing conservation requirements for environments up to 110 dB. The contoured, slow-recovery foam expands gently after insertion for a low-pressure seal that fits most ear canals without sizing. Non-allergenic, PVC-free, and made in the USA.
High-visibility colors allow safety supervisors to verify earplug compliance at a glance — a practical advantage in food processing, automotive, and manufacturing environments where compliance checks are routine.
Why Choose Moldex SparkPlugs NRR 32 Earplugs?
Features
NRR 33 dB — Maximum Disposable Protection
- One of the highest NRR ratings available for a single-use foam earplug
- Tested per ANSI S3.19; meets OSHA 29 CFR 1910.95 hearing conservation requirements
- Blocks significantly more sound energy than standard NRR 25–29 earplugs
High-Visibility Colors — Built-In Compliance Tool
- Bright colors allow supervisors to verify earplug use across a facility floor at a glance
- Reduces compliance audit time under OSHA hearing conservation programs
- Promotes voluntary wear through visual reinforcement in group settings
Slow-Recovery Foam — All-Day Comfort
- Compresses for easy insertion, expands slowly to conform to ear canal shape
- Low-pressure seal stays comfortable across 8–12 hour shifts
- Reduces the urge to remove — the leading cause of NRR underperformance
Tapered Contour Fit — No Sizing Needed
- Bullet-shaped taper fits most adult ear canals without small/medium/large variants
- Correct insertion requires no rolling or twisting — reducing improper fit in the field
- Consistent seal across a mixed workforce without individual fitting sessions
Non-Allergenic & PVC-Free
- Free of PVC, latex, and common contact allergens
- Safe for workers with chemical sensitivities or sensitive skin
- No irritation during extended daily wear in hot or humid environments
Disposable & Hygienic
- Single-use design eliminates contamination risk from shared or reused PPE
- Required format in food processing, pharmaceutical, and healthcare-adjacent facilities
- No cleaning, storage, or maintenance — reduces program management overhead
Made in USA — TAA Compliant
- Manufactured by Moldex-Metric, Inc. in the United States
- TAA-compliant for government, military, and federal contractor purchasing
- Consistent domestic quality control and supply chain reliability
Bulk Dispensing Format
- Box of 200 (100 pairs) sized for facility dispensing stations and safety cabinets
- Compatible with standard earplug dispenser racks
- Available for case-quantity ordering with volume pricing
Specifications
- NRR: 33 dB (ANSI S3.19)
- Style: Uncorded / disposable
- Material: Soft polyurethane foam, PVC-free, non-allergenic
- Quantity: 200 earplugs (100 pairs) per box
- Origin: Made in USA
- Best for: Construction, manufacturing, automotive, food processing, recreational shooting
- Brand: Moldex
Where Moldex SparkPlugs Are Used?
Applications & Environments
Construction & Heavy Civil
- Jackhammers, saws, and heavy equipment regularly exceed 95–105 dB
- NRR 33 provides sustained all-day margin above OSHA's 90 dB action level
- Disposable format ensures a fresh, uncompromised pair on any job site
Manufacturing & Metal Fabrication
- Stamping presses, CNC mills, and grinders generate continuous damaging noise
- Standard specification in OSHA 29 CFR 1910.95 hearing conservation programs
- Bright color aids compliance verification during facility walkthroughs
Automotive Assembly & Service
- Impact wrenches, air compressors, and paint booths combine airborne and impact noise
- Non-allergenic foam safe around automotive chemicals and solvents
- High-visibility color supports PPE compliance checks on the assembly floor
Food Processing & Packaging
- Conveyor lines, fillers, and mixers create sustained noise in hygiene-critical settings
- Single-use PVC-free design meets HACCP and FDA contamination-control requirements
- Disposable format eliminates cross-contamination risk between shifts
Pharmaceutical & Cleanroom-Adjacent
- PVC-free, non-outgassing material appropriate near controlled environments
- Non-allergenic construction meets chemical sensitivity requirements
- Disposable format aligns with contamination-control protocols
Airport Ground Operations & Aviation Maintenance
- Jet engines and ground support equipment regularly exceed 130 dB
- Commonly specified as the earplug layer in double-protection programs (muffs over plugs)
- Meets FAA and OSHA combined hearing protection program requirements
Woodworking & Carpentry
- Table saws, routers, and planers generate high-frequency noise — fastest route to hearing loss
- NRR 33 rated for cabinet shops, millwork facilities, and residential framing crews
- Tapered fit works without adjustment across varied workforce ear canal sizes
Recreational Shooting & Firearms
- Single gunshot peaks at 140–165 dB — instant hearing damage threshold
- NRR 33 is among the highest passive protection ratings available
- Preferred where electronic muffs are impractical or not permitted
Landscaping & Grounds Maintenance
- Leaf blowers, commercial mowers, and chippers run 90–106 dB continuously
- Disposable format practical for multi-site outdoor crews who lose or soil reusable PPE
- No cleaning required between jobs — grab a new pair from the truck kit
Oil & Gas & Industrial Facilities
- Refineries and compressor stations have among the highest sustained noise exposures
- NRR 30+ is the minimum standard at most site-issued PPE programs — SparkPlugs exceed it
- High-visibility color aids compliance verification across large outdoor footprints
FAQ
Are Moldex SparkPlugs OSHA compliant? Yes — NRR 32 meets OSHA's hearing protection requirements for sustained noise up to 110 dB (using the 50% derating method).
Are these earplugs reusable? No. SparkPlugs are single-use and disposable, which makes them more hygienic for multi-shift environments where shared PPE is a concern.
How do SparkPlugs compare to NRR 29 earplugs? The NRR 32 rating blocks measurably more sound energy and is better suited for high-sustained-noise environments like metal fabrication, airport ground crews, or concerts.
What size fits these earplugs? The tapered design fits most adult ear canals without separate sizing options needed.
