This filter can be used as a stand-alone filter for the 7000 & 9000 series masks, or as an additional secondary filter for any 7000 series cartridge filter using the Piggyback Adaptor (Part# 797920).
For contaminants falling under an OSHA substance specific standard requiring a High-Efficiency Particulate Air (HEPA) filter. These substances include asbestos, lead, inorganic arsenic, and cadmium. Outside of the USA, check with all applicable and local government regulations. Also for use in environments where oil-based particulates are present.