Excellent noise reduction and comfort

• Poly bag keeps earplugs clean prior to use
• Larger size accomodates people with larger ear canals
• Soft foam earplugs are easy to insert then expand within the ear canal to help reduce noise exposure
• Noise Reduction Rating (NRR)* 33 dB. CSA Class AL.
• Test compatible with 3M™ E-A-Rfit™ Validation System
• 200 pair per case