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3M™ E-A-R™ Classic™ SuperFit™ 33 Earplugs 311-1125, Corded, Poly Bag

Airgas Part #:3MR311-1125


Manufacturer #:7000127172

$0.48 /Pair
Package Size: 200 Pair
$0.48 Pair
$96.00 Box 200 Pair / Box
$960.00 Case 2,000 Pair / Case

In Stock

Item Details

  • The 3M™ E-A-R™ Classic™ SuperFit™ 33 Earplugs with orange fitting ring provides a guideline for proper fitting and quick visual compliance check. The 3M™ E-A-R™ Classic™ Superfit™ Earplugs come with an orange fitting ring that provides a guideline to show when the earplugs are properly inserted for optimal hearing protection. Slow recovery, low pressure foam fits snugly to create a noise barrier that helps protect hearing from high level sounds. The earplugs are both flame resistant and moisture resistant. Bright yellow color with the orange fitting ring allows supervisors to conduct a quick visual hearing protection compliance check. Recommended applications include chipping, chiseling, drilling, furnace operations, grinding, heavy equipment operations, machining, pouring/casting, power fastening, riveting, sanding, sawing and welding. These earplugs are commonly used in the following industries: agriculture, automotive, chemicals, construction, general manufacturing, healthcare, oil and gas, and pharmaceuticals. These earplugs have a Noise Reduction Rating of either 30 dB or 33 dB CSA Class AL (check ordering chart when selecting earplugs). However, research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in earplug fit, earplug fitting skill, and motivation of the user. It is recommended that the NRR be reduced by 50% to better estimate typical workplace protection. These earplugs are test compatible with the 3M™ E-A-Rfit™ Validation System. 3M™ is Leading the Advancement of Hearing Conservation™.


  • Orange "fitting ring" provides a guideline for proper fitting and quick visual hearing protection compliance check
  • Slow recovery, low pressure foam conforms to the unique shape of each ear canal for enhanced comfort and wearability
  • Stiff enough when compressed to make fitting easier yet soft enough to be comfortable in the ear for extended wear
  • Dermatologically safe foam is non-irritating
  • Standard size earplug fits most people comfortably
  • Test compatible with 3M™ E-A-Rfit™ Validation System
  • Moisture-resistant - helps maintain a consistent expansion time, even in humid situations
  • Flame resistant - important for potential arc flash situations and for storage considerations

Product Attributes

Safety Product Type

» Corded Earplug


» 33 dB

Trade Name

» E-A-R™ Classic™ SuperFit™




» Cylinder

Plug Color

» Yellow

Cord Color

» Blue