SR 5153 Prefilter Holder allows the use of the prefilter SR 221, the prefilter protects the P100 particulate filter against premature clogging.
- Prefilter holder secures and protect the main filter against handling damage
- Made of high quality nylon plastic material
- Design allows easy air flow
- Can also be used with test disc SR 322 for an easy user seal check
- Meets and exceeds NIOSH standards for air purifying respirators
- Machine Washable in 104 degrees F