Blueair Blue Pure 311 Auto vs Winix Zero S Air Purifier

  • Great for smaller rooms
  • Quiet even with the fan on full speed
  • Compact size
  • Looks attractive
  • Fits in nicely with furniture
  • Great for reducing CO2 and VOC levels
  • Quiet on most fan settings
  • Good air quality monitoring with colour coded light display
  • Uncalibrated
  • Needs to be placed on a hard, flat surface

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