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Red and black over-the-head earmuffs with double-shell cups and stainless steel headband

3M

3M H10A Optime 105 Over-the-Head Earmuffs inventory supply

SKU CH-R4WX-05T27 MPN H10A

Over-the-head earmuffs with double-shell technology provide hearing protection up to 105 dBA and a 30 decibel Noise Reduction Rating

  • TypeHearing protector
  • FeaturesEffective hearing protection for noise exposures up to 105 d
  • ColorRed, Black
  • Finish/SurfaceABS
  • SpecificationsHearing Protection Style: Over-The-Head Noise Reduction Rati
  • Effective protection for noise up to 105 dBA
  • Noise Reduction Rating of 30 decibels
  • Double-shell technology boosts noise blocking ability
  • Durable stainless steel headband resists bending and warping
  • Lightweight design with liquid/foam-filled cushions for comfort

105 dBA Over-the-Head Earmuffs

The Peltor Optime 105 over-the-head earmuffs provide effective hearing protection for noise exposures up to 105 dBA. They suit workers in facility maintenance, grinding, machine operations and other high-noise industrial tasks. The high-visibility green colour aids visibility in low-light conditions. One size fits most adults.

Double-Shell Technology and Cushions

Double-shell technology boosts noise blocking ability across the frequency range. Liquid and foam-filled cushions create a comfortable seal around the ears. A durable stainless steel headband resists bending and warping during daily use. These elements combine to deliver a Noise Reduction Rating of 30 decibels CSA Class AL.

NRR 30 Decibel Capacity and Limits

The NRR of 30 decibels provides substantial attenuation for environments reaching 105 dBA. Protection decreases if the cushions degrade or the headband loses tension over time. The earmuffs are not designed for noise levels exceeding the rated 105 dBA exposure limit. Users requiring communication headsets or helmet-mounted options need a different product style.

Highlights

  • Effective protection for noise up to 105 dBA
  • Noise Reduction Rating of 30 decibels
  • Double-shell technology boosts noise blocking ability
  • Durable stainless steel headband resists bending and warping
  • Lightweight design with liquid/foam-filled cushions for comfort

Specifications

TypeHearing protector
Brand3M
ModelH10A
FeaturesEffective hearing protection for noise exposures up to 105 dBA
Double-shell technology boosts its noise blocking ability
Durable stainless steel headband resists bending and warping
Noise Reduction Rating (NRR) of 30 dB, highest available in over-the-head style earmuffs
ColorRed, Black
Finish/SurfaceABS
SpecificationsHearing Protection Style: Over-The-Head
Noise Reduction Rating: 30 Decibel
Shape: Earmuffs
Shipping weight0.64 kg
Package size206 × 145 × 114 mm

Questions about this item

How often should the liquid/foam-filled earmuff cushions be replaced on the 3M H10A Optime 105?

Replace cushions every 6 months or sooner if they harden, crack or lose their seal, keeping attenuation at the rated 30 decibels.

What limits comfort during an all-day shift with the double-shell earcup design?

Clamping force from the stainless steel headband is the first limit; the double-shell cups add mass that increases pressure on the jaw after several hours.

Does the stainless steel headband or the ABS earcups get hot when worn continuously in a warm facility?

The ABS earcups trap body heat against the ears, while the steel band stays near ambient temperature; expect noticeable warmth after 2–3 hours.

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