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INSTRUCTIONS FOR USE
Please read the following instructions for use and keep this leaflet for future reference.

WARNING 
  • Choking hazard. Due to small parts, keep away from children. If used by children, adult supervision is required.
  • Should not be used for scuba diving or other deep diving.
  • For personal use only; not intended for professional or industrial use. 
  • Consult your doctor before use if you have a perforated or infected ear drum.
  • Before use, make sure your hands and ear plugs are clean and free of dirt or debris.
  • Do not alter or modify the ear plugs in any way and check for any damage before use.
  • If any irritation occurs, stop using immediately.
  • If used for flying, the ear plugs should be removed as descending commences.
  • When not in use, store the ear plugs in the travel case supplied.


Frequency [Hz] 125 250 500 1000 2000 4000 8000
Sound attenuation Mf [dB] 26.3 22.9 24.0 28.5 37.8 41.5 39.3
Standard deviation Sf [dB] 4.0 3.4 4.2 4.2 4.5 3.3 4.1
APV Mf-Sf [dB] 22.3 19.5 19.8 24.4 33.3 38.2 35.2

 

SNR= 28dB H=32dB M=24dB L= 22dB
SNRm=31.0dB Hm=35.0dB Mm=27.7dB
Lm=25.0dB
SNR.=3.4dB Hs=3.3dB Ms=3.6dB Ls=3.3dB

 

EN 352-2:2020 SNR 28dB

ANSI S3. 19-1974 Noise Reduction Rate
NRR 20dB