https://www.theguardian.com/technology/2022/mar/30/dyson-launches-zone-air-purifying-bluetooth-headphones-with-visor > Company’s first wearable delivers personal pocket of filtered air and cancels unwanted noise > Dyson has announced its first wearable product that builds the firm’s air purification expertise into a set of Bluetooth noise cancelling headphones aimed at city dwellers wanting to avoid polluted air.