• Designed as a refill for the 3M™ E-A-R One Touch Dispensing Stand (391-1000).
• NRR 29
• 500 PR Per Bottle
• *The NRR may overestimate the hearing protection provided during typical use.

3M™ 1100 One Touch™ Refill is designed as a refill for the 3M™ E-A-R One Touch Dispensing Stand (391-1000).

*The NRR may overestimate the hearing protection provided during typical use. 3M recommends reducing the NRR by 50% for estimating the amount of noise reduction provided.