12 months of use from the UltraHEPA filter (replacement cost is $60).

Only a few other air purifiers for sale actually offer a filter this advanced.ДЄs for the cost of filter replacements and how long they last, you can expect: The UltraHEPA filter, however, is what really makes this machine stand out among the competition. Air Doctor scores points for giving users this added capability.ДЄll-in-all, the Air Doctor Pro purifier has a fantastic air cleaning process. Ionized air is known to be a mood enhancer and odor neutralizer. Ionizer - This is a bonus air cleaning feature that sends negatively charged ions out into the air to help purify it.(See our article on what does an activated carbon filter do for more information.) This is a common filter found in many other air purifiers. That wording makes it sound more powerful however, all Activated Carbon filters perform those same two functions. Activated Carbon Filter - Air Doctor labels this as a вЂњdual-action gas and VOC (volatile organic compound)вЂќ filter.It only traps particles as small as 0.03 microns. ThatвЂ™s 100X smaller than a standard True HEPA filter found in other air purifiers. It captures 99.95% of particles down to 0.003 microns. UltraHEPA Filter -В This is the most advanced HEPA filter available.It helps improve the efficiency of the other internal filters by keeping large pollutants out of their filtering materials. Pre-filter - A washable filter that traps the largest particles, like dust, hair, and dirt.The Air Doctor Pro purifier has a 4-in-1 air cleaning process that includes:

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