Ear plugs have undergone a quiet revolution over the last two decades. For many years, manufacturers produced only wax-cotton plugs; ... Howard Leight MAX Price: one pair $1 NRR: 33.

Howard Leight Demonstrates High-Tech Hearing Protection. Oct 25, 2007; In its first major show since changing its name from the Bacou-Dalloz Hearing Safety Group, Sperian Hearing Protection LLC ...