Description Lightweight and robust, the PW40 is suitable for all day comfort. Excellent attenuation rate. Features CE-CAT III Lightweight and comfortable Adjustable length for a secure and comfortable fit 100% metal free Individually packed for vending machines AS/NZS 1270 SLC(80) 28dB – Class 5 EN 352-1 SNR 28dB ANSI S3.19 22dB
