390-1000 Uncorded Earplug 3M™ E-A-R™ Classic™
Features :
1. Fire resistant and moisture resistant
2. Noise reduction rating (NRR) 29 db CSA class AL
Applications :
1. Blasting
2. Painting
3. Sanding
4. Welding
5. Grinding
6. Cleaning
7. Assembly
8. Electrical
9. Dismantling
10. Machine operation
11. Facility maintenance