Coway Green True HEPA™ technology helps you breathe safer and cleaner air by clearing away unwanted contaminants. Certified in the world of air purification, Green True HEPA™ filter work around the clock to remove particles from the air. Our improved, Green True HEPA™ filter captures 99.9%² of airborne allergens as small as 0.01 microns¹ in size, while our new, multi-cubed activated carbon filter eliminates odors and gases from the air. All to give you purer, healthier air. The Coway Airmega Max2 filter is an all-in-one HEPA filter system that combines Green True HEPA™ filter technology with an activated carbon filter. Please note: The filter contains one Max2 filter of your Airmega 230 or 240. ¹Coway air purifiers has been proven to trap dust, pollen, dander, viruses and bacteria in the air based on KCL(Korea Conformity Laboratories) testing. They have been tested in a 30㎥ size chamber according to the Korea Air Cleaning Association standard (SPS-KACA 002-132:2018 Modified) to measure the 0.01㎛ size of particle removal rate. It was tested on maximum fan speed in normal room temperature and humidity conditions. The performance may vary in the actual living environment of customers. → Tested with 150, 160, AP-1216L, AP-1512HH, AP-1512HHS, 200M, Icon, IconS, 230, 240, 250, 250S, 300, 300S, 400, 400S ²99.9% of viruses, bacteria, fungi and pollen were verified to be removed from the air for Coway air purifiers which have Green True HEPA™ filter applied based on the Japan Food Research Laboratories(JFRL) testing according to JEM 1467 standard. → Tested with Coway Airmega AP-1512HH, AP-1512HHS, 250, 250S, 300, 300S, 400, 400S → All tested by JFRL and received above result within below time.- Virus: Tested with Escherichia coli phage ΦX174 NBRC 103405, 60 minutes- Bacteria: Tested with Staphylococcus epidermidis NBRC 12993, 60 minutes- Fungi/Mold: Tested with Penicillium citrinum NBRC 6352, 60 minutes- Pollen: Tested with Cedar Pollen extract, 60 minutes