3M Ear Plugs, E-A-R Classic 390-1000, Foam, Uncorded, Disposable, NRR 29, For Drilling, Grinding, Machining, Sawing, Sanding, Welding, Bulk, 200 Pair/Box
- Secure: Exposed cell surface texture resists movement and helps maintain an effective seal creating a comfortable, snug noise barrier. Noise Reduction Rating (NRR) 29 dB. CSA Class AL..
- Outstanding comfort: This unique slow-recovery, low-pressure foam and special cylindrical shape help enhance comfort throughout the day by creating lower pressure in the ear canal..
- Soft sound-absorbing foam: Proprietary foam is initially firm to make fitting the ear plug easier, then softens once it’s in the ear to comfortably conform to the unique shape of each ear canal..
- Sweat and humidity resistant: Classic ear plugs are resistant to moisture absorption for consistent fitting even in humid environments..
- Versatile: Use while chipping, chiseling, drilling, furnace operations, grinding, heavy equipment operations, machining, pouring/casting, power fastening, riveting, sanding, sawing and welding..
- For industrial/occupational use only. Not for consumer sale or use..