How to Put In Earplugs
Worn properly an earplug like the Howard Leight Max NRR 33 can be used in noise up to 110 dB(A). 110 dB is roughly equivalent to someone blowing a whistle...
Worn properly an earplug like the Howard Leight Max NRR 33 can be used in noise up to 110 dB(A). 110 dB is roughly equivalent to someone blowing a whistle...