- Full facepieces must be quantitatively fit tested to claim assigned protection factor above 10 in negative pressure mode
- Do not use in environments that are immediately dangerous to life or health (IDLH)
- NIOSH approved for environments containing certain oil and non-oil based particles
- Channeled airflow protects filter for enhanced breathability and longer service life
- Unique, spring-loaded filter cover design simplifies negative pressure user seal checks
