360 combined filter cartridge for ap proCartridge composed of a pre filter, a HEPA filter, and an activated carbon filter. Captures up to 99. 97% of all ultra fine particles (up to 0. 1 microns) such as pollen, allergens, viruses, bacteria, microbes, mites and absorbs effectively odors and volatile organic compounds (VOCs) such as formaldehyde, chemical vapors, cigarette smoke, etc. + RFID technology integrated into the cartridge. Filtration stages 1 The pre filter grid surrounds the filter