• NIOSH approved and provides the highest level of protection against oil and non-oil based particles
• Bayonet compatibility allows use with many 3M™ half and full facepieces and certain 3M™ Scott™ full facepieces
• Channeled airflow protects filter for enhanced breathability and longer service life
• Unique, spring-loaded filter cover design simplifies negative pressure user seal checks
• Nuisance odor relief for acid gas levels below the Permissible Exposure Level (PEL)