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The best air purifier deal is back at Costco.

I have these Winix units all over my house.

Better performing than everything you can find on Amazon and it comes with 2 years of filtration and easy to control on a Wi-Fi app.

AHAM rated for 360 sq ft, but will cover up to nearly 1,800 square feet with one air change per hour.

My favorite feature is the sensors and auto mode. It gives you the ability to set it up and forget about it. The fan speeds will change automatically, the air quality sensor will change colors and let you know it’s working and the change filter indicator will let you know when it’s time to change the true HEPA filter (I usually set a timer/reminder for my carbon filter change as I do with my furnace filter).