The Winix 5500-2 is a powerhouse air purifier designed for larger living spaces. It combines True HEPA filtration with Winix’s own PlasmaWave technology for exceptional air cleaning performance. What We Love The Winix 5500-2 features a 4-stage filtration system including a washable pre-filter, carbon filter, True HEPA filter, and PlasmaWave technology. It covers rooms up to 360 square feet. Performance In our testing the Winix 5500-2 handled large open living spaces with ease. Pet dander and smoke odors were eliminated quickly and efficiently. Pros • Excellent for large rooms • Auto mode adjusts to air quality • Washable pre-filter saves money • Very quiet sleep mode Cons • Larger footprint than competitors • PlasmaWave can be turned off if preferred Our Verdict The Winix 5500-2 is the best mid-range air purifier for large rooms. Highly recommended. Check the latest price on Amazon: https://www.amazon.com/dp/B01BMSCFNO Rating: 9.2/10