Howard Leight L3H Leightning Ear Muffs

Steel wire construction stands up to daily use and abuse without compromising comfort. Padded foam headband and super soft ear cushions eliminate squeezing pressure on the head. Patented Air Flow Control™ technology for optimal attenuation across all frequencies and snap-in ear cushions for easy maintenance.
Tested to ANSI S3.19.
CSA Class A (L)
NRR is the Noise Reduction Rating in decibels (dB). It is the average noise reduction obtained by a group of people wearing a specific hearing protector in a laboratory test. Research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in earplug fit and and wearing time. It is recommended that the NRR be reduced by 50% for estimating the average amount of noise reduction provided.