The HE SP3 particulate filter cartridge made for 3M’s Powerflow Powered Air Purifying Respirator systems. It’s a high‑efficiency particulate filter, NIOSH‑approved for use with Powerflow PAPRs, and meant to trap very fine airborne particulates that show up in demanding industrial or remediation environments.
These cartridges are made specifically for Powerflow PAPRs, which pull air through the filter using a battery‑powered blower.
Used correctly, it’s a straightforward way to keep a Powerflow PAPR ready for particulate hazards like dust, mists, or other fine particles typically encountered in construction, environmental cleanup, lab, or pharmaceutical settings.
