Newport 9000 Replacement Hepa/Charcoal Filter Factory replacement for the Advance Pure Air Newport 9000 Multi-Technology Air Purifier. HEPA air filters remove 99.97% of particles down to 0.3 microns in size, almost 300 times smaller than the width of a human hair. HEPA air filters are recommended by the U.S. Dept. of Homeland Security. Activated Carbon Filters trap odors and chemicals in highly absorbent granules. By far the most effective filters against cigarette smoke and are also very effective against everything from paint fumes and toilet odors and pet smells.