MSA XLS Ear Muffs

Fits most slotted hard hats and is designed to fit comfortably under safety hard hats and faceshields. These earmuffs provide aggressive protection in low to moderate noise environments. Features spring design for low pressure, three wearing positions, excellent grip for ease of adjustment, easy-to-remove ear cushions and unique molded inserts for excellent noise attenuation. Weight 8.7 oz.
Tested to ANSI S3.19.
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.