Earplugs 3M™ 1100

3M™ 1100 Series Earplugs: High-performance foam hearing protection

The 3M™ 1100 Series earplug is an essential benchmark for hearing protection in professional environments. Its slow-recovery PU foam conforms to the ear canal for a reliable fit and immediate comfort.

With an SNR of 37 dB, it effectively attenuates loud and continuous noises encountered on construction sites, in factories, or in workshops.

Available from Dagobert Industrie, this disposable earplug combines ease of use with high noise attenuation performance.

Presentation and technical features of the 3M™ 1100 Series earplug

The 3M™ 1100 Series earplug is an essential benchmark in individual hearing protection. Designed for noisy industrial environments, it offers a Noise Reduction Rating (SNR) of 37 dB, one of the highest in its category.

Its cordless design makes it particularly suitable for users who frequently insert and remove their protection throughout a workday.

Composition and design of the expanding foam

The earplug is made of expanding closed-cell polyurethane foam. This material compresses easily between the fingers and then expands slowly to perfectly conform to the ear canal.

The smooth surface and slightly tapered cylindrical shape facilitate insertion and removal, even when wearing gloves. No special tools or skills are required.

Key technical features are as follows:

• SNR: 37 dB
• Material: Closed-cell polyurethane foam
• Format: Cordless
• Shape: Cylindrical, smooth surface
• Standard: EN 352-2
• Usage: Single use

Product	Manufacturer	SNR	Material	Format	Typical usage
1100 Series	3M™	37 dB	Smooth PU foam	Cordless	Heavy industry, high exposure
1110 Series	3M™	37 dB	Smooth PU foam	Corded	Industry, frequent insertion/removal
E-A-R Classic™	3M™ (Aearo)	29 dB	Yellow PU foam	Cordless	Moderate exposure
Bilsom 303	Honeywell	35 dB	PU foam	Cordless	General industry

Noise attenuation level and compliance with safety standards

The 3M™ 1100 Series earplug offers an SNR of 37 dB, making it one of the highest-performing disposable hearing protectors on the market.

Concretely, this level of attenuation allows work in noisy environments of up to 107 dB(A) while remaining below the danger threshold of 70 dB(A) at the ear.

The product complies with the European standard EN 352-2, which sets the safety and performance requirements for earplugs. It also meets the requirements of the PPE Regulation (EU) 2016/425, Category III, the highest level of protection.

Attenuation values by frequency band (HML method) are as follows:

• H (high frequencies): 38 dB
• M (medium frequencies): 33 dB
• L (low frequencies): 26 dB

To contextualize this product relative to other common earplugs, here is a comparison:

Product	Manufacturer	SNR	Standard	Type
1100 Series	3M	37 dB	EN 352-2	PU foam, cordless
1110 Series	3M	37 dB	EN 352-2	PU foam, corded
E-A-R Classic	3M / Aearo	36 dB	EN 352-2	Yellow PU foam, cordless
Bilsom 303	Honeywell	36 dB	EN 352-2	PU foam, cordless

The 1100 Series stands out for having an SNR among the highest in its category, suitable for the most exposed industries: metallurgy, carpentry, construction, and food processing.

How to properly use the 3M™ 1100 Series earplug

An incorrectly inserted earplug drastically reduces noise attenuation. The 3M™ 1100 Series offers an SNR of 37 dB, but only if the fit is correct.

Insertion steps for optimal protection

The memory foam of the 1100 requires a precise three-step protocol. Take the time to follow these for every use.

• Roll: With clean, dry fingers, roll the earplug between your thumb and index finger until you achieve a thin, compact cylinder.
• Pull: With your other hand, pull the outer ear slightly upward and backward to open the ear canal.
• Insert: Quickly insert the rolled earplug into the canal and hold it in place for 20 to 30 seconds while the foam expands.

The earplug should be deeply positioned in the canal, not just placed at the entrance. If you can still clearly see it in a mirror, it is not inserted deeply enough.

To remove it, gently twist it while pulling backward. Avoid pulling it out quickly: this creates an unpleasant pressure in the ear.

The 3M™ 1100 earplugs are for single use. Deformed, dirty, or rigid foam no longer provides a proper seal, replace them systematically.

Comparison: 3M™ 1100 Series earplug versus other hearing protection

The hearing protection market offers several families of products. Here is how the 3M™ 1100 Series earplug positions itself against common alternatives.

Product	Type	SNR	Material	Typical usage
3M™ 1100 Series	Disposable cordless earplug	37 dB	Polyurethane foam	Industry, construction, heavy-duty
3M™ 1110 Series	Disposable corded earplug	37 dB	Polyurethane foam	Same protection, easier to handle
3M™ Peltor™ Optime I	Ear muffs	27 dB	Cup + foam	Occasional wear, priority on comfort
Honeywell Howard Leight Max	Disposable cordless earplug	36 dB	Polyurethane foam	Industry, versatile
Moldex 7700	Reusable corded earplug	36 dB	Memory foam	Repeated use, long-term economical

The 37 dB SNR of the 3M™ 1100 is among the highest in its class. This is a concrete advantage in very noisy environments (forges, sawmills, construction sites).

Compared to ear muffs like the Peltor™ Optime I, the 1100 offers better attenuation, almost zero bulk, and a much lower unit cost. Ear muffs remain relevant for frequent wearing/removing throughout the day.

Compared to the reusable Moldex 7700, the 1100 is for single use: maximum hygiene guaranteed, zero maintenance. In dirty or multi-user environments, it is often the right choice.

Compared to the Honeywell Howard Leight Max, both products are very similar in attenuation. The 1100 stands out for its slightly wider cylindrical shape, which is appreciated by users with larger ear canals.

Areas of application and recommended work environments

The 3M™ 1100 Series earplug is designed for use in industrial environments with high noise levels. It is suitable wherever noise exceeds 85 dB(A), the legal threshold for mandatory hearing protection.

Its slow-expanding foam and high SNR rating (up to 37 dB according to EN 352-2 standards) make it a suitable choice for prolonged and repeated exposure.

The following are sectors and workstations where this earplug is particularly recommended:

• Manufacturing industry: presses, milling machines, noisy assembly lines
• Construction and public works: jackhammers, compressors, chainsaws
• Food processing: bottling lines, packaging, cutting
• Carpentry and woodworking: planers, circular saws, jointers
• Metallurgy and foundry: grinding, welding, plasma cutting
• Airports and logistics: runways, loading docks, high-activity warehouses

This earplug is suitable for both occasional interventions and full workdays. Its disposable design makes it ideal for environments subject to strict hygiene regulations.

However, it is less suitable for environments where frequent verbal communication is essential. In such cases, a uniform attenuation hearing protector or ear muffs with a communication module would be more appropriate.

FAQ - 3M™ 1100 Series earplug

1. What is the protection level of the 3M™ 1100 Series earplug?

The 3M™ 1100 Series earplug features an SNR of 37 dB, making it one of the highest-performing disposable hearing protectors on the market.

It is suitable for very noisy environments: construction work, heavy industry, carpentry, metallurgy, or any station exposed to more than 100 dB.

2. How do I properly insert the 1100 series earplug?

Roll the earplug between your fingers to form a thin, compact cylinder. With the other hand, pull the outer ear slightly upward and backward.

Insert the earplug and hold it in place for 20 to 30 seconds while it expands to fit the ear canal. Incorrect insertion significantly reduces effectiveness.

3. Is the 3M™ 1100 Series earplug reusable?

No. It is a single-use disposable earplug. The polyurethane foam degrades quickly with repeated compression cycles.

For frequent use, 3M offers reusable alternatives such as the 3M™ 1290 series earplugs, which are more durable and washable.

4. Is this product certified for professional use?

Yes. The 3M™ 1100 Series earplug complies with the EN 352-2 standard, which governs individual earplug-type hearing protectors in Europe.

It meets the requirements of the PPE Regulation (EU) 2016/425 and can be used as part of a workplace hearing risk prevention plan.

5. What is the difference between the 3M™ 1100 and the 3M™ 1110?

The 3M™ 1100 is cordless, while the 3M™ 1110 is connected by a cord, which facilitates handling and prevents losing the earplugs.

Both models share the same yellow foam with SNR 37 dB. The choice depends on the context: the 1110 is preferable when earplugs are removed and put back in frequently throughout the day.

6. Does the foam of the 1100 earplug fit all ear shapes?

The expanding polyurethane foam of the 3M™ 1100 adapts to the vast majority of ear canals due to its progressive expansion capacity.

For a particularly narrow or atypical ear canal, pre-molded earplugs like the 3M™ 1300 series may offer better comfort and a better seal.