Activated Carbon Filter is the best type of air filter for trapping chemicals, gases, odours and cigarette smoke. According to Penn State Dept. of Aerobiological researchers, carbon filters serve to remove odours, volatile organic compounds (VOCs) and chemicals that other filters cannot
High-Efficiency HEPA Filter is the most effective type of air filter at capturing dust, allergens and other solid particles (including bacteria). HEPA filters are recommended by the U.S. Department of Homeland Security.
The replacement filters ensures your purifier maintains optimum efficiency. Replace these filters every 18 months. Both filters are sold as one unit.