Hearos Ear Plug, Extra Small 25 Ea

Powered by Hearos. Noise reduction rating. 28 decibels (When used as directed). The range of noise reduction ratings for existing hearing protectors is approximately o to 30 (higher numbers denote greater effectiveness). 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.