Howard Leight Thunder T3 Ear Muffs, 30 dB NRR
 
Air Flow Control is a standard feature on all Thunder series earmuffs. Dielectric/Plastic Construction Thunders robust non deforming dielectric construction withstands use and abuse, while protecting your workers in electrical environments. Non-Deforming Outer Headband Thunders non-deforming outer headband provides better comfort, minimizes pressure on head, withstanding rough treatment in the toughtest workplaces.