Air purifiers are fundamentally simple machinesβlittle more than a fan and a filter. Yet a well-designed purifier can capture virtually all airborne allergens, such as pollen and mold spores, as well as bacteria, viruses, and smoke. Virtually identical to our top pick on features and performance, this purifier is a great choice if you prefer its looks or find it at a better price.
This purifier is terrific overall, but it has minor shortcomings, including a stark look, no display shutoff, and slightly elevated electrical use. With quiet operation, good color options, and performance matching our other picks, this is a great choice, although the cost of filter replacements can run relatively high. Similar in performance to other purifiers its size, the Levoit impressed in initial and long-term testing.
The Blue Pure i Max aced our tests, and on top of its powerful performance, it stands out for its energy efficiency, quiet operation, user-friendly features, and good looks. It offers great value on initial and long-term costs, and its compact form, quiet operation, and display-light shutoff make it especially well suited to using it in a bedroom or living room. The Winix is an exceptional performer on particulates air pollution: It captured as much as We prefer the Coway Airmega APHH Mighty for its lower energy consumption, smaller visual footprint, and manual display-shutoff feature.
The Blueair Blue Pure i Max is similarly excellent in purifying performance to our other standard-space picks and offers notably quiet performance, terrific energy efficiency, and a display shutoff.
A re-engineered motor versus its predecessor, the Auto , a larger and less dense filter, and a more-open outlet grille account for its lower electricity consumption and noise output. One minor knock: The company recommends replacing the filters every six to nine months, pushing yearly replacement costs above those of some similar purifiers. The Blueair Blue Pure i Max , meant for large spaces around square feet, is a stellar performer, reducing smoke levels in our test room by more than An app remotely monitors its readings and can control its settings.
