- Thông tin sản phẩm
- Thông tin kỹ thuật
Box of 500 pairs disposable polyurethane earplugs. Ø 12 mm. Refill unit for CONICDISPLAY.
EN352-2 Hearing protection : Earplug
SNR 37 dB Standard noise reduction
H 36 High frequency attenuation
M 34 Medium frequency attenuation
L 33 Low frequency attenuation
ANSI S3.19-1974 American National Standards Institute
NRR 32 dB NRR (Noise Reduction Rating)
This standard specifies the test method for determining the level of noise attenuation (NRR Noise Reduction Rating) of the hearing protection, as recommended by the EPA (U.S. Environmental Protection Agency).