Hellberg 42003 Secure 3 Helmet Mounted Ear Defenders, 100-115 dBThe helmet mounted earmuff is the ideal choice for any work that requires head and hearing protection. Its durable construction withstands rough environments and the slim design reduces the risk of snagging in branches or confined areas. Protection level 3 is suitable for high to very high noise levels, between 100-115 dB. Fortunately a rare environment for most workers, but the best and only choice when nothing else will do. Protection level 3 is also the best choice when the noise is dominated by low frequencies, a type of noise that masks out speech and other important sounds as well as causing stress and nausea.Helmet mountedThree wearing positionsApproved with most popular helmetsReplaceable cushions with "snap-in" systemIntegration with face protectionNoise Protection Level Hellberg 42003 Secure 3 Helmet Mounted Ear Defenders, 100-115 dB