Dyson's hot and cool purifier is an air-pushing triple threat

Dyson's latest household toy is the Pure Hot+Cool Link -- a fan, heater and air purifier in one. Click through to get up-close and personal.

Those tiny holes are where air gets sucked in, before being strained through a HEPA filter. Dyson says the filter will last a year before it needs replacing, assuming you use the product every day.

Being a modern gadget, the device can be controlled via an app. Using this software you can adjust settings, see how clean the machine thinks your air is, and see how that air purity has changed over time.

Around the back are two concealed sensors, which check the air for dust and volatile organic compounds. These could include particles from a burning fire, or scented candles.

The design is a standard Dyson blade-free one, so there are no spinning rotors. The whole unit runs fairly quietly.

If the app is too much bother, there's remote control too. That moon-shaped button triggers night mode, which limits the power level of the fan and dims the display on the front.

You'll pay a hefty price for the privilege of heating, cooling and purifying air. The Pure Hot+Cool Link will cost a wallet-bruising $600, £500 or AU$749.