Delta Plus UltraSonic Earmuffs 29NRR Pyramex I-Force Lenses have H2X anti-fog coating

Lenses have H2X anti-fog coating and are treated to reduce scratching and static

and 99% of harmful UV rays

and optical radiation (including 99

Low profile

Delta Plus UltraSonic Earmuffs 29NRR Pyramex I-Force Lenses have H2X anti-fog coatingDelta 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.