EP903 earmuffs, SNR 29 dB
The specialist for high frequencies: with H 36 dB, the EP903 has the highest H value of all EarProtect earmuffs. Plastic headband, cups with foam insert, 182 grams.
- SNR
- 29 dB
- H / M / L
- 36 / 26 / 18 dB
- Standard
- EN 352-1:2020
- PPE category
- III
- Weight
- 182 g
- Packaging
- 1 unit
Loud noise, high frequencies
Grinding, cutting-off, sawing and compressed air blow-off mainly produce high frequencies. Here the H value counts more than the SNR: with H 36 dB, the EP903 attenuates even more than the EP902. For low-frequency noise, on the other hand, it is weaker (L 18 dB); there the EP902 is the better choice.
How to read H, M and L is explained in SNR and H/M/L.
Correct use in four steps
- 01
Open the cups
Pull the cups outwards and place them over the ears.
- 02
Enclose the ears
The cushions must completely enclose the ears and sit tightly against the head. Hair, caps or spectacle arms disturb the seal.
- 03
Adjust the height
Adjust the height of both cups until the fit is firm and comfortable. The headband sits straight on the head.
- 04
Clean
After use, clean cushions and foam pads with mild soap and water or alcohol wipes and leave them to air-dry.
Technical data
| Item | Version | Colour | SNR | H / M / L | Weight, pack | Recommended at |
|---|---|---|---|---|---|---|
| EP903 | Adjustable | red/black | 29 dB | 36 / 26 / 18 | 182 g; 1 unit | 91–101 dB(A) |
“Recommended at”: workplace levels of mid- to high-frequency noise at which 70 to 80 dB(A) reach the ear according to the HML check of DGUV Rule 112-194 (M value minus real-world deduction).
Frequently asked questions
What is the EP903 particularly suitable for?
For noise with many high frequencies such as grinding, sawing or compressed air. With H 36 dB, it has the highest H value of the EarProtect earmuffs.
How strongly does the EP903 attenuate low frequencies?
L 18 dB. For low-frequency noise from compressors or engines, the EP902 with L 23 dB is better suited.
