HEPA Conical Filter Cartridge Assembly (PV126-A) for enhanced filtration performance. This filter cartridge features HEPA-grade media designed to capture fine particles and improve air quality during operation. Important: This cartridge does not make your Hybrid vac HEPA-certified and will not pass DOP testing. The filter media is significantly more fragile than standard MERV 15 cartridges and requires careful handling during cleaning. Cleaning Instructions: Use a shop vac for cleaning. Direct compressed air along the pleats only—never direct air into the filter media, as this can easily tear the delicate material. Proper maintenance extends filter life and maintains optimal performance.