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"FEATURES\n\nReplacement Filter for ADH50B: Only compatible with Day Dawning ADH50B Air Purifier, a desktop purifier for Home, Office Desk, Room or Desktop.\n360° Cylindrical Pollutant Removal: 360° cylindrical air filters work efficiently to capture pollutants, including dust, smoke, pet dander, odor, etc.\nTRUE HEPA Technology: Preliminary filter, true HEPA filter, activated carbon filter, effective to capture and hold particles as small as 0.3 microns.\nFilter Change Reminder: When the speed indicator keeps flashing in blue, it is a reminder to check and change the filter, which is supposed to be every 6-8 months depending on its condition.\n\n \nWHEN?\n\nReplacing the air filter every 6-8 months for optimal use (or according to your air filter status).\nIt is time to replace the air filter when the following signals appear: increased noise, decreased airflow, clogged filters, presence of odors from the unit.\n\n \nHOW?\n\nRotate the bottom cover counterclockwise and remove the filter.\nRemove the plastic seal from the filter.\nPlace the filter back into the unit. Make sure the tag of the filter is facing outward. Close the bottom cover by rotating it clockwise.\n\n \nFrequently Asked Questions\n\nWhat&#39;s a True HEPA Filter?\n\nHEPA stands for High-Efficiency Particulate Air. HEPA filters, originally designed by the U.S. Army to remove radioactive materials from the air, are the most effective way to remove pollen, dust, and other indoor particle pollutants. A True HEPA filter can remove 99.97% of airborne particles 0.3 microns or larger-- that&#39;s 166 times smaller than a human hair.\nSometimes, you may see some filters named HEPA-like or HEPA-style, or HEPA-type. Unlike true HEPA filters, these filters cannot actually remove 99.97% of bacteria down to 0.3 microns in diameter.\n\nWhat’s the difference between HEPA and Medical Grade HEPA Filter?\n\nGenerally speaking, the higher the HEPA filter grade, the better the purification effect. True HEPA filters usually range from H10-H12. And the highest grade of HEPA filter is H13-H14, which is considered to be medical grade. A normal HEPA filter (H10-H12) removes 99.97% of particles that are 0.3 microns or larger while a medical grade HEPA filter removes 99.97% of particles that are 0.1 microns or larger. \nIf you need the Medical Grade H13 filter, please click here to learn more: https://airthereal.com/pages/accessories\n\nCan the True HEPA filter block the virus like the coronavirus?\n\nHEPA air purifiers work well against airborne particles by capturing them in the HEPA filter. It filters out 99.97% airborne particles including pollen, dust, and other pollutants. To a degree, HEPA air purifiers are able to efficiently block the particles that are virus-sized. But there are no studies to date with that air purifiers are able to help protect against infection. So please follow the CDC&#39;s recommendations to help prevent COVID-19: wash your hand, clean and disinfect frequently.\n\nCan True HEPA filter remove odors like cigarette smoke?\n\nIn the third and final stage of filtration, we add an activated carbon filter that helps to remove bad smells from your home. The large pores in the activated carbon are not effective in removing large particles, but they are exceptionally great at trapping odor-causing molecules so that your house smells fresh at all times. \nFor some tough and strong odors, we would strongly recommend you to try ozone generators to do thorough sterilizing and odor removal.\n\nWhen should I replace the filter?   \n\nWhen the replacement icon lights up, it is a reminder to check and change the air filter. It’s recommended to replace the filter every 6-8 months for optimal use, or according to your air filter status.\nAfter replacing the filter, please reset the filter alert according to the instructions in the user manual.\n \n "
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