According to Winix, the 5500-2 is a formidable weapon against particulates, pet dander, germs, smoke, volatile organic compounds (VOCs), and odors. And we agree: an air purifier that sports the combination of a 99.97% True HEPA filter, a carbon filter, and plasma technology exudes promise and potential. Its room coverage and CADR specs are also great selling points.

The pre-filter is permanent, but it has to be cleaned every 14 days. The carbon filter, on the other hand, is washable and should be cleaned every three months. As such, it’s not exactly the most low-maintenance air purifier on the market. Washing the carbon filter significantly extends its lifespan, yet Winix still recommends to jointly replace the HEPA and carbon filters annually. Luckily, the 5500-2 has a filter replacement indicator to help you out with this.

Aside from its impressive filter lineup, this model makes a mark for having extra bells and whistles that benefit the user experience. Its smart sensors detect VOC, odor, and lighting levels in the room, enabling it to automatically adjust the fan speed and LED brightness to suit its environment.

The 5500-2 also has a sleep mode for silent operation, and at a mere 27.8 dBA, it really is an exceptionally-quiet machine. Aside from a bunch of dedicated indicators and controls, the included remote control brings in added convenience. While it’s true that the short warranty and bulky design can be discouraging for some consumers, this air purifier is so loaded with features that make it impossible to write off.

The Winix 5500-2 boasts a 3-stage purification process that includes a True HEPA filter, a washable carbon filter, and PlasmaWave technology, all on top of a permanent, cleanable pre-filter. Covering areas up to 360 sq. ft. in size,  it’s a great all-around option for highly-discriminating consumers considering its robust array of features.