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  • AIR FLOW CONTROL™ TECHNOLOGY Bilsom’s patented Air Flow Control™ technology delivers optimal attenuation across all frequencies, without increasing earcup size or weight.
  • A patented baseplate chamber and high-tech non-woven layer manage the flow of air inside the earmuff to control how sound reaches the ear.
  • The result is better, more consistent overall attenuation for virtually all industrial noise environments.
  • Air Flow Control is a standard feature on all Thunder series earmuffs.
  • DIELECTRIC/PLASTIC CONSTRUCTION Thunder’s robust nondeforming dielectric construction withstands use and abuse, while protecting your workers in electrical environments.
  • SNAP-IN EAR CUSHIONS Make replacement quick and easy. 
  • Noise Blocking Earmuff
  • For Construction workers