3M 450-01-01 NIOSH HE Particulate Powerflow HEPA Filter Cartridge PK2
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The 3M 450-01-01 is a NIOSH-approved High Efficiency (HE) particulate filter cartridge designed for use with 3M Powerflow-equipped Powered Air-Purifying Respirator (PAPR) systems. The purple/magenta color band is the NIOSH-mandated identifier for HE (HEPA-equivalent, ≥99.97% filter efficiency) particulate protection, providing SP3-level filtration against fine dusts, fumes, metal particulate, asbestos, and other hazardous aerosols. The cartridge features a bayonet-style twist-lock inlet connection compatible with 3M Powerflow blower units and carries NSN 4240-01-323-3526, confirming mil/government procurement qualification. A factory-installed inlet sealing cap (pull-tab style) is visible in the photos, confirming the unit is new and unused with the filter media sealed. Manufactured in Canada (visible on label: "Made in Canada / Fabriqué au Canada"), this filter is sold as a single cartridge and is a direct replacement for use in industrial, pharmaceutical, nuclear, and abatement environments requiring maximum particulate protection.
Product Specifications
| Brand | 3M |
| Model / MPN | 450-01-01 |
| NSN | 4240-01-323-3526 |
| Filter Type | HE (High Efficiency) Particulate |
| NIOSH Approval | NIOSH HE Particulate (450-01-01) |
| Filter Efficiency | ≥99.97% (HE / HEPA-equivalent) |
| Color Code | Purple/Magenta (NIOSH HE particulate standard) |
| Compatible System | 3M Powerflow PAPR blower units |
| Connection Type | Bayonet twist-lock (Powerflow inlet) |
| Country of Manufacture | Canada |
| Protection Level | SP3 particulate |
| Condition | New, sealed (inlet cap installed) |
| Quantity | 1 cartridge (single) |