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Ultraviolet light treatment

The engineering story

Some other humidifiers have dirty secrets. Ours has Ultraviolet Cleanse technology.

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James Dyson next to Humidifier

“Existing humidifiers can be unhygienic. They allow bacteria in the tank to be transmitted directly into the room. By questioning, testing and often trying the seemingly illogical, we could create technology that solves this problem – and engineer a better product.”

James Dyson, Engineer

Bacteria close up

Breathing new life into humidifiers. By killing bacteria.

To make our humidifier hygienic, we tested every possible way of killing bacteria in water – from silver ions to antimicrobial plastic. Ultraviolet light was by far the most effective method. This led us to develop our own technology, channelling every drop of water in the tank along a specially-designed cold cathode UV-C bulb.

Components assembly

To continue our journey, we would need top-flight materials.

The problem with ultraviolet light is that it can crack or disintegrate product components. So we built a test rig to accelerate degradation in different materials. Eventually, we chose Polyetherimide – a military grade plastic, often used for jet engine components.

Helium symbol

Leaking tanks. No laughing matter.

To ensure our tanks were also strong and secure, we developed a high-powered laser to weld the two sides together. Then to make sure there were no tiny holes where water could escape, we tested for leakage using helium – chosen because of its small molecular size. We still use the same test method on every single tank.

Dyson humidifier being tested

Five years of testing the water. And the airflow.

Over the course of five years, we created more than 70 test methods – from bacteria removal to airflow projection. We even tested the machines in the varying levels of humidity that they’ll be subjected to around the world, from dry summers in Australia to humid downtown Manhattan.

Computer system testing the water

Greater lengths. But not always distances.

Coincidentally, the tap water at our UK base in Malmesbury is some of the hardest that can be found in the world. These adverse calcium conditions meant that our machines had to perform under the most difficult conditions possible.


  • Engineers


  • Years in development


  • New test methods


  • Prototypes

Inside a Dyson humidifier

The result: The most hygienic humidifier with even room coverage

Choose your model

Dyson Pure Humidify+Cool™ PH01 (White/Silver)

Ideal for larger spaces. Purifies, humidifies and cools you.

Automatically senses and captures allergens, pollutants and gases. Displays air quality and humidity in real time

Connects to the Dyson Link app for easy monitoring and scheduling

Colour:  White / Silver
Options

What's in the box

See all Hide Click to learn more
  • Remote control

    Curved and magnetised to store neatly on the machine

  • Power supply
  • Combi 360° Glass HEPA and Activated Carbon Filter
Currently out of stock.
    $999.99
    Pay by installments with 0% interest from PayBright
    Learn more
    EXCLUSIVE COLOUR

    Dyson Pure Humidify+Cool™ PH01 (Black/Nickel)

    Ideal for larger spaces. Purifies, humidifies and cools you.

    Automatically senses and captures allergens, pollutants and gases. Displays air quality and humidity in real time

    Connects to the Dyson Link app for easy monitoring and scheduling

    Colour:  Black / Nickel
    Options

    What's in the box

    See all Hide Click to learn more
    • Remote control
    • Combi 360° Glass HEPA and Activated Carbon Filter
    • Power supply
    Currently out of stock.
      $999.99
      Pay by installments with 0% interest from PayBright
      Learn more

      Dyson Humidifier AM10 (White/Silver)

      Even, whole-room humidification.

      Cooling fan in summer.

      Ultraviolet Cleanse technology.

      Colour:  White / Silver
      Options

      1 accessory included

      See all Hide Click to learn more
      Remote control

      Curved and magnetized to store neatly on the machine

      Currently out of stock.
        $599.99
        Pay by installments with 0% interest from PayBright
        Learn more

        Dyson Humidifier AM10 (Black/Nickel)

        Even, whole-room humidification.

        Cooling fan in summer.

        Ultraviolet Cleanse technology.

        Colour:  Black / Nickel
        Options

        1 accessory included

        See all Hide Click to learn more
        Remote control

        Curved and magnetized to store neatly on the machine

        Currently out of stock.
          $599.99
          Pay by installments with 0% interest from PayBright
          Learn more

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