3M Yellow Uncorded Earplugs 1250 NRR33 Class AL Ear Plugs 5-200 Pairs Soft

3M Classic™ uncorded earplugs set the standard in hearing protection as the world's first foam earplugs. Constructed from slow-recovery foam, these disposable earplugs are uniquely moisture-resistant.
Slow recovery and low-pressure foam conform to the shape of the ear canal for enhanced comfort and wearability
Moisture-resistant—helps maintain a consistent expansion time, even in humid environments
Noise reduction rating (NRR) 33 dB. CSA  AL
Flame resistant—important for potential arc flash situations and for storage considerations