This half-facepiece respirator offers reliable, convenient respiratory protection and is suitable for many situations, helping provide protection against particulates and a wide variety of gases and vapors according to NIOSH approvals. Small reusable respirator must be combined with 3M Particulate Filters or Cartridges (such as organic vapor/acid gas cartridges) in its bayonet holder or dual airline system. It is not designed for use in environments that are immediately dangerous to life or health.