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L1 Series

When you're in a tough industrial environment and need to block noise, Bilsom's Leightning series' steel wire construction provides high performance and robust durability. Leightning stands up to daily use and abuse without compromising comfort. Bilsom has optimized the Leightning series to deliver the highest level of comfort available, featuring an exclusive padded foam headband and super soft ear cushions that eliminate that "squeezing pressure" on the head.


Features for every worker
  • The ultimate in safety and protection
  • Your workers need the right level of protection. Not enough and they're vulnerable to hearing damage. Too much and they become isolated from their environment. That's why we offer a range of attenuation levels, each suited to different users, different environments. Whatever the situation demands, turn to Bilsom for the most innovative earmuffs in the industry.


  • Patented high performance technology
  • Bilsom's new patented Air Flow Controlâ„¢ technology delivers optimal attenuation across all frequencies, without increasing earcup size or weight. As sound travels through the air in the earcup, a patented baseplate chamber and high-tech non-woven layer inside the ear cushion manage the flow of air and controls how sound reaches the ear. The result is better, more consistent overall attenuation for almost all industrial noise environments. Air Flow Control is a standard feature on all Leightning and Thunder series earmuffs.


  • Quick-Click height
  • Quick-Click height adjustment allows easy fit adjustment that stays in place

Item # Description Price
1-2
Price
3-4
Price
5-9
Price
10+
Quan.
ml-HL-L1H Leightning L1H, NRR 23
Earmuff Hard Hat Mount
Hat Sold Separately
$11.00 $10.50 $10.00 $9.50

L3 Series

When you're in a tough industrial environment and need to block noise, Bilsom's Leightning series' steel wire construction provides high performance and robust durability. Leightning stands up to daily use and abuse without compromising comfort. Bilsom has optimized the Leightning series to deliver the highest level of comfort available, featuring an exclusive padded foam headband and super soft ear cushions that eliminate that "squeezing pressure" on the head.


Features for every worker
  • The ultimate in safety and protection
  • Your workers need the right level of protection. Not enough and they're vulnerable to hearing damage. Too much and they become isolated from their environment. That's why we offer a range of attenuation levels, each suited to different users, different environments. Whatever the situation demands, turn to Bilsom for the most innovative earmuffs in the industry.


  • Patented high performance technology
  • Bilsom's new patented Air Flow Controlâ„¢ technology delivers optimal attenuation across all frequencies, without increasing earcup size or weight. As sound travels through the air in the earcup, a patented baseplate chamber and high-tech non-woven layer inside the ear cushion manage the flow of air and controls how sound reaches the ear. The result is better, more consistent overall attenuation for almost all industrial noise environments. Air Flow Control is a standard feature on all Leightning and Thunder series earmuffs.


  • Quick-Click height
  • Quick-Click height adjustment allows easy fit adjustment that stays in place

Item # Description Price
1-2
Price
3-4
Price
5-9
Price
10+
Quan.
ml-HL-L3H Leightning L3H, NRR 27
Earmuff Hard Hat Mount
Hat Sold Separately
$22.50 $22.00 $21.50 $21.00

Thunder Series
For Electrical Environments

When it comes to selecting an earmuff, comfort reigns supreme with workers. That's why Bilsom Thunder Earmuffs are designed with all-day comfort in mind. Headband earmuffs feature a unique dual-headband for better positioning and breathability, and non-deforming outer headband that minimizes pressure on the head. Plus, its dielectric construction withstands use and abuse, while protecting workers in electrical environments.

  • Dielectric construction suitable for all workplaces, especially electrical environments
  • Uniform headband pressure for all head sizes, providing better comfort for long-term wear
  • Inner-ventilated headband minimizes pressure on the head, breathes easier in warm/humid climates.
  • Non-deforming outer headband withstands rough treatment in the toughest workplaces
  • Quick-Click height adjustment remains fixed during wear
  • Snap-in ear cushions make replacement quick and easy
  • Patented high performance technology

    Bilsom's new patented Air Flow Controlâ„¢ technology delivers optimal attenuation across all frequencies, without increasing earcup size or weight. As sound travels through the air in the earcup, a patented baseplate chamber and high-tech non-woven layer inside the ear cushion manage the flow of air and controls how sound reaches the ear. The result is better, more consistent overall attenuation for almost all industrial noise environments. Air Flow Control is a standard feature on all Leightning and Thunder series earmuffs.


  • Item # Description Price
    1-2
    Price
    3-4
    Price
    5-9
    Price
    10+
    Quan.
    ml-HL-T3H Bilsum Thunder T3H, NRR 27
    Ear Muff Hard Hat Mount
    $22.00 $21.00 $20.00 $19.50

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