Is Dyson worth the price compared to Levoit, Winix, or Coway?

There's a real split in the data. High-trust testing on rtings.com gives Dyson's larger Big+Quiet line strong marks for particle capture, but specialist-subreddit threads and value-focused reviewers repeatedly note that you're paying heavily for design, the fan/heater integration, and the app, not for materially better filtration than a much cheaper Levoit or Winix. Dyson makes the most sense if you want a fan or heater in the same footprint.