A great air purifier can really improve your life—reducing allergens such as pollen and mold spores, and protecting against wildfire smoke and other kinds of smoke. But to qualify as great, an air purifier needs to be powerful enough to clean the air in a large living room or playroom, quiet and dark enough for you to sleep near it in a bedroom, and inexpensive enough that it’s reasonable to have several spread throughout your home. After eight years, during which we’ve tested 47 different air purifiers, we believe the exceptional Coway AP-1512HH Mighty is the best among them—as we have since 2015.
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