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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

Convenient
Dispenser available (ED-250, ED-500)
Nylon cord or PVC cord helps prevent earplugs loss

Compatible with
Designed to be compatible with earmuff or other PPE

Frequency [Hz] 125 250 500 1000 2000 4000 8000
Sound attenuation Mf [dB] 32.8 39.8 42.4 38.7 37.4 45.5 47.4
Standard deviation Sf [dB] 4.4 5.2 5.7 4.7 5.6 4.7 4.5
APV Mf-Sf [dB] 28.4 34.6 37.6 34.0 31.8 40.8 42.9

 

SNR=36dB H=34dB M=34dB L=34dB
SNRm 40.1dB Hm 38.8dB Mm=38.4dB Lm=37.8dB
SNRs 4.3dB Hs=4.8dB Ms=4.3dB Ls=4.1dB

 

EN 352-2:2020 SNR 36dB


ANSI S3. 19-1974
Noise Reduction Rate NRR 30dB
AS/NZS 1270: 2002
SLC(80)=18dB CLASS 3