It was also noted as being very well-built, yet lightweight and easy to move from room to room. Overall, we were very impressed with the Levoit's smart capabilities, aesthetic design, and performance. There, you're able to see the current air quality in the room, set a schedule for the purifier to run, and get filter replacement notifications. As we tested, we noted that the app is very easy to set up and very user-friendly. We also loved the smart features of the Levoit, including the app and Amazon Alexa or Google Assistant compatibility. There's also a Sleep Mode that lowers the fan speed and noise level to whisper-quiet operation-something we really appreciated. When set to Auto Mode, the fan speeds up when it recognizes allergens or other pollutants in the air and then returns to a lower setting once the air is clean. You can manually set the fan speed or let the purifier do it automatically based on the room's air quality. The Levoit also features a five-speed fan, which can be set to run quietly during sleep.

However, you should still clean the pre-filter every 2 to 4 weeks. In addition, the filter is designed to last up to six months before needing to be replaced. The three-stage HEPA filtration system removed 99% of impurities in our test. In our test, the Levoit 400S ranked best overall after impressing our tester with its ability to quickly and effectively purify the air in a large room.

The pre-filter requires regular maintenance and cleaning every 2 to 4 weeks. We also had a board-certified allergist/immunologist on our Medical Expert Board review this article for medical and scientific accuracy. In addition to their ability to improve air quality, we evaluated each model based on how easy it is to set up, how user-friendly (and aesthetically pleasing) the design is, noise level, additional features, and value. Every purifier that made our list has a true HEPA filter, which is necessary for helping remove mold spores from the air (though, in our Lab, we only tested how well each purifier removed pet hair and smoke from the air). We tested 40 air purifiers in our lab from the top brands. Humidity and moisture remediation is best at handling this type of problem.' However, if allergens and mold are a serious concern, having the added support of an air purifier is a good idea. 'Air filtration is generally not considered effective against removing mold. Stanley Fineman, MD, board-certified allergist, and spokesperson for the American College of Allergy, Asthma, and Immunology says that mold is a result of humidity or moisture issues.

It's important to note that even the best air purifiers can't completely remove all mold spores from the air. Air purifiers may help remove common allergens like mold from the air, providing relief for people with allergies or chronic asthma. Mold is a type of fungus that thrives in moist environments and can cause serious health problems, including respiratory diseases, fatigue, and headaches.

Activated carbon filter air purifier