Description
Comfortable, Reusable Hearing Protection for Noisy Work Environments
The 3M™ E-A-R™ UltraFit™ 340-4004 Corded Earplugs are reusable hearing protectors designed for occupational noise exposure. Featuring a patented triple-flange design, soft elastomeric polymer construction, and a corded configuration for convenience, these earplugs provide a Noise Reduction Rating (NRR) of 25 dB and CSA Class AL performance. The premoulded design allows quick insertion without rolling, helping keep the earplug tips cleaner during use.
Key Features
Benefits
Specifications
| Brand | 3M™ E-A-R™ |
| Model | 340-4004 |
| Product Type | Corded Reusable Earplugs |
| Colour | Yellow Earplugs with Blue Cord |
| Earplug Design | Triple-Flange Premoulded |
| Material | Elastomeric Polymer |
| Cord Type | Vinyl Corded |
| Size | Regular / One Size Fits Most Ear Canals |
| Noise Reduction Rating (NRR) | 25 dB |
| Classification | CSA Class AL |
| Reusable | Yes |
| Washable | Yes |
| Compatibility | 3M™ E-A-Rfit™ Validation System |
| Individual Pack | Poly Bag |
| Units per Carton | 400 Pairs per Case |
| Barcode | UPC 10080529400038 |
How to Use
- Hold the earplug by the stem.
- Gently pull the outer ear upward and outward.
- Insert the earplug until the flanges seal comfortably within the ear canal.
- Verify both earplugs are properly seated before entering noisy areas.
- After use, wash with mild soap and water and allow to dry before reuse.
Hearing protectors must be properly inserted and fitted to achieve their stated protection performance; 3M recommends fit validation and notes that actual protection can vary with fit and user technique.
Customer Reviews
⭐⭐⭐⭐⭐ “Comfortable all day and easy to clean after every shift.” — Pieter S.
⭐⭐⭐⭐⭐ “The cord keeps them handy between tasks and the fit is excellent.” — Amanda K.
⭐⭐⭐⭐⭐ “Great reusable earplugs for workshop and manufacturing environments.” — Gareth M.
FAQs
Q: Are these disposable earplugs?
A: No. They are designed to be washable and reusable.
Q: Do they need to be rolled before insertion?
A: No. The premoulded triple-flange design allows push-to-fit insertion.
Q: What noise reduction do they provide?
A: They carry an NRR of 25 dB and CSA Class AL classification.
Q: Will they fit most users?
A: Yes. The one-size triple-flange design is intended to fit most ear canals.
Q: Can they be used repeatedly?
A: Yes. The elastomeric polymer construction is washable and reusable.
Q: Are they compatible with hearing protection fit testing?
A: Yes. They are compatible with the 3M™ E-A-Rfit™ Validation System.
Q: What industries commonly use these earplugs?
A: They are commonly used in construction, manufacturing, mining, oil and gas, transportation, maintenance, fabrication, and other noisy industrial environments.
Industries & Applications
Compliance & Certifications
Choose trusted 3M™ hearing protection designed for comfort, durability, and repeat use. The E-A-R™ UltraFit™ 340-4004 combines proven noise reduction, a reusable design, and convenient corded storage, making it an excellent choice for demanding industrial environments.
