0.1: The size, in microns, of particles filtered by the Dyson Zone
5: Number of liters of clean air delivered per second by the Dyson Zone
90: Number of minutes of use of the Dyson Zone at its highest level
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¹Footnotes
[theguardian.com](https://www.theguardian.com/technology/2022/mar/30/dyson-launches-zone-air-purifying-bluetooth-headphones-with-visor)
*Originally published in the April 4, 2022, edition of the This Week in Sound email newsletter. Get it in your inbox via [tinyletter.com/disquiet](https://tinyletter.com/disquiet).*