Specification of Earplug 3M Ultrafit 340-4002
Ear protector
Earplug 3M Ultrafit 340-4002 with strap are earplugs to reduce noise, squeaky, loud, and noisy.
Spec
Proprietary, premolded, triple-flange earplug design for easy insertion
The soft polymer is easy to wash and reuse
Noise Reduction Rating (NRR) *: 25 dB.
Safe and comfortable to wear
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