7 air purifier deals I'd recommend while air quality alerts are in effect — shop Coway, Shark, Blueair and more

If you’re after a small yet powerful purifier that can handle mid-large spaces, this Levoit Core smart model is ideal. It comes with a three-stage filtration, and has an auto feature that scans the air for particles and adjusts the fan speed accordingly. Plus, it sends back real-time reports to your phone, for added convenience.

The BlueAir Blue Pure 511i Max has a coverage of 1,138 sq ft, so it's great for small rooms. It uses HEPASilent, dual filtration technology to remove at least 99% of airborne particles in the air. It also runs very quiet and you can even control it via the Blueair app. Plus, its modern design makes it easy to blend into any room.

Named the best air purifier for small spaces in our guide, this Shark air purifier suits rooms up to 250 sq ft, although this is based on one change of air over an hour. With an auto mode, it adjusts the fan speed based on the quality of the air and displays the corresponding data on the panel. It also has Odor Neutralizer Technology, that releases a fresh scent in the air.

In our Airmega AP-1512HH review, we said that the air purifier is small and compact in stature, but powerful. Its eco-friendly setting also helps keep energy costs low, earning it the most energy-efficient of the bunch. Better yet, it provides a decent clean air delivery rate (CADR) of 247.5/232.3/241.3. It also offers an ionizer mode, which will disperse negative ions to improve the quality of the air it filters. Other perks include its three-year warranty, but it is important to note this is on the heavier side (12.3 pounds).

Get rid of the tiniest of unwanted particles and air contaminants with the Shark Clean Sense Air Purifier MAX. Its anti-allergen HEPA filter is designed to tackle everything form smog and toxins to dust and dander, giving you healthier, purified indoor air quality.

We voted this the most stylish air purifier we've seen in our Windmill Air Purifier review, and it's eye-catching design will blend into any room. More importantly, it offers a powerful 3-in-1 filtration to handle a large room coverage. It also comes with a smart app for hands-free control.

The Blue Signature air purifier was a clear winner in our tests, due to efficiency and quickly works well in large spaces. This model provides a high CADR in terms of dust, smoke and pollen, and offers plenty of handy settings, and WiFi-enabled. Plus, the design even doubles up as a coffee table!