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PBI/Kevlar Integrity & Suppleness Retained up to 540C
durability
do not use any other solvents
100% polycarbonate scratch-resistant lenses
Interchangeable lens design to optimize performance in any environment
Delta Plus UltraSonic Earmuffs 29NRR ONOS Ocracoke PBI/Kevlar Integrity & Suppleness RetainedDelta Plus UltraSonic earmuff is our latest high performance muff with a stainless steel headband. This model has been designed to provide excellent full spectrum attenuation, as well as superb low frequency attenuation. UltraSonic uses a fork type headband for even distribution of pressure, and improved balance required for extra deep ear cups. Features: 29 dB NRR from certified US laboratory to ANSI S3. 19 1974 and 34 dB SNR tested to CE EN 352 1.
