3M!" E-A-R!" UltraFit!" 340-4004 Reusable Earplugs NRR 25DB

Corded earplugs that features a proprietary, premolded, triple-flange design that fits comfortably in most ear canals.

• 100prs/box
• Proprietary, premolded, triple-flange earplug design inserts easily
• Soft polymer is washable and reusable
• Easy to clean
• Noise Reduction Rating (NRR)*: 25 dB. CSA Class AL.
• Test compatible with 3M™ E-A-Rfit™ Validation System