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3M E-A-R Ultrafit 340-4004

3M E-A-R UltraFit 340-4004 earplugs feature a pre-molded triple-flange design that fits comfortably in most ear canals.


3M E-A-R UltraFit 340-4004 Earplugs

The 3M™ E-A-R™ UltraFit™ Corded Earplugs feature a “no-roll”, triple-flange design that provides quick, clean, and comfortable hearing protection. Simply hold the stem and push the earplug into the ear. The tip stays clean even if hands are dirty or gloves are worn. The soft polymer earplugs are washable and reusable so they don’t need to be replaced as often, reducing waste and lowerings costs. Poly bag keeps earplugs clean prior to use. Recommended applications include assembly and mechanical, chipping, chiseling, cleaning, drilling, furnace operations, grinding, heavy equipment operations, machining, metal repair, painting, pouring/casting, power fastening, riveting, sanding, sawing and welding. These earplugs are commonly used in the following industries: construction, general manufacturing, mining, oil and gas, and transportation.

These soft polymer earplugs have a Noise Reduction Rating (NRR) of 25 dB and are test compatible with the 3M™ E-A-Rfit™ Validation System. Not only is noise present in our daily routines and recreational activities, but millions of Americans work in hazardous noise on a daily basis. Estimates from the National Institutes of Health suggest that approximately 15 percent of Americans (26 million people) between the ages of 20 and 69 have high frequency hearing loss due to exposure to noise at work or during leisure activities. Hearing loss due to noise is almost entirely preventable by judicious use of hearing protection.*The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.


3M E-A-R UltraFit 340-4004 Earplugs Features 

  • Premolded, triple flange earplug s fit comfortably in a wide range of ear sizes
  • No need to roll earplugs before fitting so the tips stay clean even if hands are dirty
  • Soft polymer is washable and reusable, reducing both waste and costs
  • Poly bag keeps each pair or earplugs available or accessible for re-use
  • Noise reduction rating (NRR) 25 dB CSA Class AL
  • Test compatible with 3M™ E-A-Rfit™ Validation System
Banded No
CSA Class CSA Class AL
Case Quantity 400 pair
Cord Color Blue
Cord Type Vinyl
Corded  Yes
Dielectric No
Earplug Color Yellow
Earplug Material Elastomeric Polymer
Earplug Shape Flanged
Electrically Insulated Yes
Hearing Protection Style Corded
Hearing Protection Type Eartips
Insertion Style No Roll
Metal Detectable No
Moisture Resistant Yes
Product Color Yellow
Product Series E-A-R UltraFit
Product Type Earplugs
Recommended Industry Automotive, Construction, General Manufacturing, Manufacturing, Marine, Metal Fabrication, Military Maintenance, Military Maintenance, Repair & Operation (MRO), Mining, Oil & Gas, Pharmaceutical, Repair & Operation (MO), Transportation
Recommended Application Assembly, Blasting, Cleaning, Composite Finishing, Demolition, Electrical, Facility Maintenance, Final Finish, Grinding, Machine Operation, Paint Preparation, Painting, Sanding, Welding
Roll-Down Required No
Shape Multi-flange
Reusable Yes
Brand 3M

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