Pros

  • β€’The Winix 550 uses a True HEPA filter, capturing 99.97% of airborne particles as small as 0.3 microns, which is fantastic for allergy sufferers.
  • β€’PlasmaWave technology effectively neutralizes odors and pollutants without harmful ozone production.
  • β€’Features an air quality sensor that automatically adjusts fan speed based on reaime air quality feedback.
  • β€’Offers quiet operation at lower speeds, ideal for bedrooms and quiet spaces.
  • β€’The washable carbon filter efficiently absorbs odors, significantly boosting air quality.
  • β€’The device is easy to set up, with everything ready in about five minutes.
  • β€’The intuitive control panel and remote control add to the convenience.
  • β€’The design is modern and aesthetically pleasing, complementing various decors.
  • β€’Performs impressively, purifying spaces up to 360 square feet, perfect for larger living areas.
  • β€’Robust filtration system includes prilter, True HEPA filter, and activated carbon filter.

Cons

  • β€’Some users found the unit to be loud at higher settings, which may be disruptive in certain environments.
  • β€’Lacks Wi connectivity and smart features for more integrated modern convenience.
  • β€’No backlit buttons on the control panel, which can be inconvenient in dim environments.
  • β€’The larger size may take up considerable floor space, and its design may not be as visually appealing as some competitors.
  • β€’Some users experienced issues with noisy fan bearings after prolonged use, impacting lonerm satisfaction.
  • β€’Consumes slightly more electricity compared to some other models, increasing operational costs.
  • β€’Sleep mode dims display lights but does not adjust fan speed, limiting effectiveness overnight.
  • β€’The PlasmaWave feature can only be toggled directly on the unit, not via the remote.

Bottom Line

The Winix 5500-2 Air Purifier is a high-quality, effective solution for improving air quality at home or in medium to large rooms. It's a reliable choice for those dealing with allergens or odors, thanks to its robust multi-stage filtration system and PlasmaWave technology. While it lacks some modern frills like Wi-Fi connectivity and may get noisy at higher speeds, its superior air purification and ease of use make it a worthwhile investment for clean-air seekers. If smart features are essential for you, consider alternatives like the Coway AP-1512HH Mighty, which offers similar filtration capabilities with added modern conveniences.

Lowest at Amazon
$132.99 at Amazon
Lowest at any Popular Retailer
$81.68 at ecrater-USA

Where to Buy

Prices last updated: January 20th 2026 4:01 pm
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