Levoit Core 400S vs Coway Airmega 400 Air Purifier

  • Great for allergies and asthma
  • Quiet fan noise
  • High pitched winey sound
  • Works well in the beginning but not so much now
  • App is handy and useful
  • Great for allergies and dust
  • Quiet on low level
  • Detects dirty air and enables more powerful mode
  • Mobile app is easy to use
  • Starts producing crackling sounds sometimes

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