The 3M UltraFit Earplugs 340-4004 provide reusable hearing protection for workers exposed to hazardous workplace noise. Their triple-flange design helps create a secure fit without requiring the plugs to be rolled before insertion.

Made from soft, flexible polymer, these earplugs can be washed and reused, making them a practical option for regular industrial use. The attached cord keeps the pair together and makes them easier to handle between tasks.

Key Features

• Reusable triple-flange earplug design
• Soft and flexible polymer construction
• Corded design for convenient handling
• NRR: 25 dB
• SNR: up to 29 dB
• Washable for repeated use
• No rolling required before insertion
• Suitable for professional workplace hearing protection

Suitable Applications

• Manufacturing facilities
• Construction sites
• Engineering workshops
• Metal processing areas
• Industrial maintenance
• Other noisy workplace environments

FAQs

Are 3M UltraFit 340-4004 earplugs reusable?
Yes. Their washable polymer construction allows them to be cleaned and reused when properly maintained.

What is the noise reduction rating?
The UltraFit earplugs provide a 25 dB NRR, with an SNR of up to 29 dB depending on the applicable standard.

Do these earplugs need to be rolled before use?
No. Their premoulded triple-flange design allows direct insertion without rolling.

Why do these earplugs have a cord?
The cord keeps both earplugs together and makes them easier to manage when temporarily removed.