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Mack's 9150 Slim Fit Foam Earplugs 50 Pair Purple 31dB

SKU CH-FAS0-1QMR7

Smaller foam earplugs provide 31 dB noise reduction for sleeping, shooting and loud events in a 50-pair jar

  • TypeFoam
  • ColorPurple
  • Signal to Noise Ratio(SNR)31 decibels
  • Power Supplyfalse
  • Ear CouplingFoam
  • Cord LengthFoam
  • Designed 10% smaller for comfortable fit in sensitive ear canals
  • Low-pressure slow-release foam expands gently for side-sleeping comfort
  • High 31 dB noise reduction protects hearing in loud environments
  • #1 doctor-recommended earplug brand trusted for hearing protection
  • Made in USA with safety-sealed jar and flip-open top

Small-canal fit and 31 dB attenuation

Mack's 9150 Slim Fit earplugs are moulded about 10 % smaller than the brand's standard foam model, making them suitable for narrow or sensitive ear canals. The polyurethane foam expands slowly after insertion to create a seal rated at 31 decibels SNR and NRR. Each pack contains 50 reusable pairs in a safety-sealed jar with a flip-open lid. They are manufactured in the USA and carry a doctor-recommended designation for hearing protection.

Passive noise blocking with no power required

The plugs contain no electronics, batteries or wireless components, so they add zero power draw and produce no self-noise during use. At 45 grams total weight for the 100-piece supply, they impose negligible mass on the user. The foam material is designed for low-pressure expansion, which helps maintain comfort during side sleeping or extended wear in quiet environments.

Consistent attenuation during prolonged exposure

Because the foam relies on physical expansion rather than active circuitry, its 31 dB reduction remains stable for the full duration of concerts, shooting sessions or industrial shifts. Reusability allows the same pair to be worn across multiple days without performance loss, provided the plugs are kept clean and re-inserted correctly. Improper fitting will reduce effectiveness, so following the roll-and-hold method is essential for sustained protection.

Highlights

  • Designed 10% smaller for comfortable fit in sensitive ear canals
  • Low-pressure slow-release foam expands gently for side-sleeping comfort
  • High 31 dB noise reduction protects hearing in loud environments
  • #1 doctor-recommended earplug brand trusted for hearing protection
  • Made in USA with safety-sealed jar and flip-open top

Specifications

BrandMack's
SeriesFoam
Model9150
Part Number9150
TypeFoam
ColorPurple
Signal to Noise Ratio(SNR)31 decibels
Power Supplyfalse
Ear CouplingFoam
Cord LengthFoam
Weight45 grams
Noise Cancelling31 decibels, false, Pair
Wireless TypeIR
BatteryFalse
Contains Embedded BatteryFalse
CompatibilityNoise Protection
FeaturesNoise Protection, Reusable, 31 decibels, Polyurethane Foam, Foam
Package Contents50 pair (Pack of 1)

Questions about this item

How do I insert the Slim Fit foam earplugs so they expand fully in the ear canal?

With clean hands, roll each plug into a tight, crease-free cylinder. Reach over your head, pull the outer ear up and back to straighten the canal, then insert the plug well inside and hold until it expands for a secure fit.

How long can I reuse each pair of the 50-pack before replacing them?

The polyurethane foam earplugs are reusable; replace a pair when the foam no longer springs back to shape, shows soiling, or fails to seal the ear canal after rolling and inserting.

At what noise level does the 31 dB NRR protection start to drop off during continuous loud exposure?

The 31 decibel Noise Reduction Rating is a laboratory single-number rating; actual attenuation decreases if the plug is not rolled tightly, inserted deeply, or held until fully expanded in the canal.

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