Switching time is less than 40 microseconds. Auto shutoff is after 20 minutes without switching

Feature the innovative 3M™Quick Release Swivel (QRS) connection. The QRS connects quickly to the headgear and swivels to minimize loops and kinks in the breathing tube. The new 3M™BT-20 Breathing Tubes feature steel core coils for durability

Use to seal DIN ports

These filters and cartridges are compatible with MSA Comfo Classic, Ultra-Twin, Ultra Elite Twin, and Duo-Twin reusable respirators. Particulate filters and vapor cartridges are NIOSH-rated and installed in reusable half-mask or full-face respirators to filter out airborne contaminants. They are selected based on the environment and type of respiratory hazards that need to be filtered. They can be changed out when they become dirty or when the type of contaminant changes.

For workers who must wear corrective lenses. Easily inserts into facepiece. Can be used with a nosecup. S-7 shape 44 mm lens spectacle frame. Simple adjustments position lens

Regulate the flow of compressed air to 3M™L-Series Headgear. Allows the wearer to set the airflow to the most comfortable level. Requires up to 15 cfm at pressure rating depending on hose length