Products Description

FH0312 High Noise Reduction Sound Insulation Earmuffs

Brand: SATA | Product: High Noise Reduction Sound Insulation Earmuffs | Standard: EN352

The FH0312 high noise reduction earmuffs are designed for extremely high-noise environments, with a noise reduction rating of 37 dB. Suitable for sandblasting, grinding, stamping, engine testing and other environments exceeding 100 dB(A). Can be used alone or combined with earplugs for higher-level hearing protection.

Key Features

High Noise Reduction Rating of 37 dB

37 dB noise reduction rating makes it suitable for extremely high-noise environments, effectively protecting hearing from intense noise damage.

Designed for High-Noise Environments

Structural design is optimized for high-noise industrial environments, providing stronger acoustic isolation.

Compatible with Earplugs

In extreme noise environments, can be worn simultaneously with earplugs for double protection with combined attenuation.

Rugged Durable Shell

Constructed with robust materials to withstand daily use in harsh industrial environments.

Specifications

Parameter	Value
Model	FH0312
Noise Reduction Rating	37 dB
Standard	EN352

Applications

Sandblasting & Grinding: Sandblasting, angle grinding and polishing operations with noise levels reaching 100–115 dB(A).
Stamping & Forging: Large-scale punch presses and forging hammers with extremely high operating noise.
Engine Testing & Trials: Engine test benches and aircraft maintenance with high-frequency intense noise.
Boiler Rooms & Compressor Stations: Large boilers and air compressors with continuous high-intensity noise.
Wind Power & Generation Equipment: Wind turbine maintenance and generator set overhauls in high-noise environments.

Protection Standard Explanation (EN352)

Item	Description
Standard	EN352 series hearing protectors standards, specifying requirements for sound attenuation, comfort, construction and marking.
Noise Reduction Rating (NRR/SNR)	37 dB represents typical attenuation under standard test conditions; actual performance varies with fit and noise spectrum.
Usage Recommendation	For environments exceeding 100 dB(A), combined use with earplugs is recommended for higher protection levels.

Frequently Asked Questions

Q: What does the 37 dB noise reduction rating mean?

A: 37 dB is a single-number rating measured under standard test conditions, representing the earmuffs' average attenuation across a typical noise spectrum. Actual performance varies with fit, noise frequency distribution and other factors.

Q: When should high noise reduction earmuffs be used?

A: When workplace noise continuously exceeds 100 dB(A), or when protected ear noise still exceeds 85 dB(A) with standard earmuffs, choose high noise reduction earmuffs or combine earplugs with earmuffs for enhanced protection.

Q: Can they be worn with earplugs?

A: Yes. In extremely high-noise environments (above 105 dB(A)), wearing both earplugs and earmuffs is recommended. Combined use adds approximately 5–10 dB of protection, significantly improving safety levels.

Q: How to ensure optimal protection?

A: Ensure earmuffs completely cover the ears with the headband adjusted for proper tension. Cushions should seal tightly against the skin without gaps. Hair and eyeglass temples should not interfere with sealing. Regularly inspect cushions for aging or damage.

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Products

SATA FH0312 Sound Insulation Earmuffs - 37dB NRR For Sandblasting/Grinding/Engine Testing (EN352 Standard)