SLC80 21dB. AS/NZS 1270. Fits a wide range of Ear Canals. Expandable/contoured for a comfortable fit. Class 3. Noise reduction Rating 32 decibels (When used as directed). The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (Higher numbers denote greater effectiveness). 3M Company ST. Paul, MN. Model E-A-Rsoft Orange Neons. Federal law prohibits removal of this label prior to purchase EPA Label required by U.S. E.P.A. Regulation 40 CFR part 211 subpart B. 32 dB NRR. www.3MSafety.com. For more information in United States, see Internet www.3MSafety.com or call 1-800-494-3552. In Canada, call 1-800-267-4414. In Australia, call 1-800-024-464. Made in U.S.A. With globally sourced materials.