Respiratory cartridges need to be specified to protect against the particulate threat.  Respirator cartridges protect against particulates, chemicals and vapors and some are manufactured to protect against a combination of these threats.   Below are different cartridges that can be used for half masks and full-face masks. The complete Advantage line of particulate, chemical and combination cartridges are approved under 42 CFR Part 84. The Occupational Safety and Health Administration (OSHA) requires fit tests to ensure proper fit for workers who use respirators.To assist in choosing the correct Respiratory cartridge, click on the Selection Chart below.