3M 1100 Foam Ear Plugs (Uncorded)

The 3M 1100 ear plug is a soft, disposable polyurethane foam earplug that provides comfortable, high-level hearing protection in noisy workplaces. Its tapered shape is easy to roll down and insert, then it expands gently to seal the ear canal and block harmful noise.

Key features and benefits

• High noise reduction: excellent attenuation (around SNR 37 dB / NRR 29 dB) for loud environments.
• Soft, slow-recovery foam: low-pressure comfort for all-day wear.
• Smooth, dirt-resistant surface: easy to insert with clean fingers and resists dirt build-up.
• Tapered shape: fits a wide range of ear-canal sizes.
• Disposable & hygienic: single-use, supplied in convenient bulk packs.

Main applications

• Manufacturing & metalworking: machinery, stamping and grinding noise.
• Construction: power tools, demolition and heavy equipment.
• Mining, oil & gas: high-noise industrial operations.
• Aviation, warehousing & utilities: sustained noise exposure.

Technical specifications

Why buy from Techmaster Electronics

Techmaster Electronics is an authorised supplier of 3M hearing protection in Vietnam. We supply genuine 3M E-A-R earplugs in bulk, advise on the right attenuation for your noise levels, and provide dependable after-sales support.

Frequently asked questions

How much noise does the 3M 1100 block?

It offers high attenuation of around SNR 37 dB (NRR 29 dB), suitable for very noisy workplaces. Always match the protection level to your measured noise exposure.

What is the difference between the 3M 1100 and 1110?

The 1100 is the uncorded version; the 1110 is the same earplug supplied with a cord to keep the pair together when not in use.

How do I insert the 3M 1100 correctly?

Roll the foam into a thin crease-free cylinder, reach over the head to pull the ear up and back, insert the plug well into the canal, and hold until it expands to seal.

Is the 3M 1100 reusable?

No. It is a disposable single-use earplug; replace it when it becomes dirty or no longer expands properly.