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Beige cylindrical foam earplugs in a plastic jar with flip-open lid

Mack's 9540 ThermaFit Soft Foam Earplugs 40 Pair 30 dB

SKU CH-WBM8-4CAAH

Soft PVC foam earplugs mould to the ear canal with body heat, reducing noise by 30 decibels and supplied as 40 pairs in a flip-top jar

  • Signal-to-noise ratio30 decibels
  • Wearing styleSingle Ear
  • Cord lengthIn-Ear
  • Noise cancellation30 decibels, false, Pair
  • Wireless technologyIR
  • Product typeIn-Ear
  • Body-heat foam moulds to ear canal for custom comfort
  • 30 decibel noise reduction protects hearing in loud settings
  • 40 pairs in a flip-top jar for long-lasting supply
  • Doctor-recommended brand for sleeping beside a snorer
  • Made in USA with low-pressure PVC foam for gentle fit

What it is

Mack's 9540 ThermaFit earplugs are single-use foam inserts that carry a 30 decibel noise reduction rating. The jar holds 40 pairs of beige PVC foam cylinders shaped to ease insertion and then soften with body heat for a custom seal. They are made in the USA and come in a flip-top container for simple dispensing.

Before you order

Check that a 30 decibel attenuation level matches the noise environment you face. The plugs are disposable, so plan for regular replacement if you use them daily. Verify that the in-ear cylinder shape suits your ear canals and that you are comfortable inserting foam plugs without a cord or retention band.

Under sustained use

The PVC foam starts firm for easy insertion, then reacts with body heat to expand and fill the ear canal for a lasting seal. This heat-activated softening maintains comfort during long sleep sessions or extended work shifts. The flip-top jar keeps the remaining pairs clean and ready for each new use.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 63% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameMack's
Product lineIn-Ear
Model name9540
Part number9540
Product typeIn-Ear
Product colorBeige
Audio & video
Signal-to-noise ratio30 decibels
Wearing styleSingle Ear
Noise cancellation30 decibels, false, Pair
Connectivity
Wireless technologyIR
Power
Power supplyNo
Battery packNo
Built-in batteryNo
Size & build
Cord lengthIn-Ear
Product weight0.06 kg
Compatibility
Compatible withNoise Protection
In the box
In the box40 pair (Pack of 1)

Questions about this item

What comes in the jar and is anything else needed?

The sealed plastic jar contains 40 pairs of beige PVC foam earplugs. No extra items or accessories are required for use.

How do I choose the right version of the 9540 ThermaFit earplugs?

This model is offered in a single 40-pair beige configuration with a 30 dB Noise Reduction Rating, so there are no alternative versions or capacities to select.

What does the 30 dB rating mean when I am wearing them?

The NRR 30 dB rating indicates the level of noise reduction achieved when the cylinder-shaped plugs are inserted correctly and expand to seal the ear canal.

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