HEPA filters are designed to trap particles down to 0.3 microns, and they're usually held up as the standard for high-quality air filtration. The Air Doctor purifier includes an UltraHEPA filter. These are higher ratings than you see with many other comparable air purifiers, so it's a good choice for homes with poor air quality or those who need a very clean environment. The Air Doctor has a 326 rating for smoke, a 343 rating for dust and a 373 rating for pollen. Filtration and CADR ratingsĪir purifiers have three CADR ratings that indicate how well it does at filtering out various contaminants with a higher rating indicating that the purifier does a better job of filtering out that particular contaminant. It also includes automatic settings that can turn the purifier on and adjust the speeds as necessary to maintain optimal air quality without overworking the purifier and sensors that let you know when the filters need to be changed. The unit is backed by a one-year limited warranty. If your purifier is running less, these filters will last longer. According to the manufacturer, the Air Doctor's Gas Trap VOC filter should last approximately six months if running 24/7 and its UltraHEPA filter should last about 12 months. Exactly how long it can purify air for effectively depends on the size of the space and its air quality to start with. This heavy-duty unit is designed to run for long periods of time. The Air Doctor purifier is large enough to filter the air in a 2,400-square-foot room once every hour, so that should accommodate all except the largest spaces. We know we can only be successful if we take your trust in us seriously! Our brand,, stands for accuracy and helpful information. The analyses and opinions on our site are our own and our editors and staff writers are instructed to maintain editorial integrity. Partners may influence their position on our website, including the order in which they appear on a Top 10 list. We sometimes offer premium or additional placements on our website and in our marketing materials to our advertising partners. Any reference in this website to third party trademarks is to identify the corresponding third party goods and/or services. Product name, logo, brands, and other trademarks featured or referred to within our site are the property of their respective trademark holders. To find out more about how we make money and our editorial process, click here. If you don't click the links on our site or use the phone numbers listed on our site we will not be compensated. If you choose to click on the links on our site, we may receive compensation.
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