Indoor air can have up to five times the concentration of pollutants found in outdoor air—and those seemingly harmless dust particles floating around your house could lead to irritated eyes, headaches, and other cold-like symptoms. Air purifiers are just one way you can rid your home of these irritants, and right now, you can get one of Amazon’s bestselling models for 40 percent off.
On sale starting at $139, the Winix 5500-2 air purifier could be a great way to combat smoke, allergy-causing pollen, and other common household pollutants that reduce indoor air quality. Typically priced between $200 and $250, it’s already considered a good value thanks to powerful filtration system, performance, and ease of use, but with this deal in play, you could stand to save up to $99, too.
This Winix air purifier contains multiple filters and can cover up to 360 square feet, making it ideal for bedrooms and living rooms. It comes with a washable mesh pre-filter, which is good for tackling things like pet hair. Next, it offers a carbon filter, which is also washable and tackles chemical pollutants like VOCs (volatile organic compounds), as well as unwanted odors and smoke. Then there’s its true HEPA filter, which works to remove microscopic allergen particles (even as small as 0.3-microns in size). And lastly, this model includes a PlasmaWave filter, which further helps neutralize chemical vapors.
On the outside of the Winix 5500-2, you’ll find an LED air quality gauge. If the quality depreciates, the indicator will change color and the auto mode will adjust the fan speed to improve it. When you turn out the lights, the Winix will also go into sleep mode so that it can keep operating without disturbing your sleep. As far as noise goes, it operates at about 57 decibels, which is roughly the sound level produced by background music.
This Winix air purifier has a 4.7-star rating on Amazon from more than 35,000 reviews. One reviewer who lives on the West Coast described it as great for wildfire season and noted: “My husband is allergic to the world. These purifiers help enormously. Less medication, less sneezing, less congestion.” Another shopper raved about its “significantly reduced noise” levels and added, “Unlike my previous purchases where the noise level was a constant annoyance, this air purifier operates quietly without compromising its ability to purify the air effectively.” Other users like it because it eliminates odors you might not expect, like farts. “Forget the fact that it removes dust, you fart near this and the light goes from blue to red. It knows. It’s cleaning that up immediately,” they wrote.
A version of this article was originally published in 2021 and has been updated for 2023.