BOP


EN 352-2

Ear plugs 30221

Ear plugs 30221

> Spare earplugs in foamed polyurethane for 30220.

Specific features:
> Comfort.
> Lightness. 
> Spare ear plugs available (ref. 30221).
> SNR 20 dB ; H 25 dB ; M 15 dB L 13 dB.

 

SNR : 20 dBH : 25M : 15L : 13
HzFrequency

63

125

250

500

1000

2000

4000

8000

dBMean attenuation

24.8

22.6

15.6

13.8

21.6

33.0

38.4

40.2

dBStandard deviation

5.8

6.1

4.6

3.8

3.6

5.5

1.7

3.8

 Effective protection

19.0

16.5

11.0

10.0

18.0

27.5

36.7

36.4

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