Air purifiers can have a profound impact on your quality of life, minimizing dust, pet odor and pollution — not to mention virus particles.

For large rooms: Blueair Blue Pure 211 Plus

It looks great, runs fairly quietly and has a simple interface: A touch-sensitive button lets you set it to low, medium, high or off. That's it. The True HEPA filter is certified to clean the air in spaces up to 560 square feet, and the activated carbon filter helps remove odors, too.

For midsize rooms: Honeywell Home HPA300

It's a little more expensive than some other HEPA models, but it can cover 465 square feet. Despite its clunky design (it weighs a hefty 21 pounds), the Honeywell Home is actually one of the quieter models around. You get good control for setting timers and checking whether the prefilter or filter needs replacing.

For whole homes: Coway Airmega 400

This thing costs a pretty penny at $519, but it covers 1,560 square feet and comes with a lot of perks: You get a real-time air quality indicator, a variety of fan speeds (the highest is surprisingly quiet), smart settings that adjust fan speed according to air quality and a range of timers.

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