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Features and Benefits:
Comfortable
Soft PU foam material for low pressure inside the ear
Slow rebound allows fully attach to ear canal 
Design to fit majority ear canal with premium comfort and protection

Convenient
Bullet design fits most ear canals making the plugs easier to use Dispenser available (ED-250, ED-500)
Nylon cord or PVC cord helps prevent earplugs loss

Frequency [Hz] 125 250 500 1000 2000 4000 8000
Sound attenuation Mf [dB] 30.1 34.2 41 41.7 38.2 45.2 45,7
Standard deviation Sf [dB] 3.9 4 4.1 4.7 3.0 4.1 4.6
APV Mf-Sf [dB] 26.2 30.2 36.9 37.0 35.2 41.0 41.1

 

SNR=38dB H=37dB M=36dB L=32dB
SNRm=40.8dB Hm=40.1dB Mm=39.5dB Lm=36dB
SNRs=2.9dB Hs=2.9dB Ms=3.2dB Ls=3.6dB

 

EN 352-2:2020 SNR 38dB

ANSI S3. 19-1974
Noise Reduction Rate NRR 32dB
AS/NZS 1270: 2002
SLC(80) 26.1dB CLASS 5