Dreame’s new air purifier has a tracker that means you can’t escape the clean air

• The AirPursue PM20 is Dreame's first ever air purifier
• It can detect your presence and direct pure air wherever you go
• Cal also double up as a heater and circulating fan

If you dream of having your own personal cloud of clean air, Dreame has you covered. The brand has just launched its first-ever air purifier, called the AirPursue PM20, and it has a rather unusual USP: it's fitted with radars, which enable it to detect people and blast clean air in their direction. It's not a feature that I've seen in all my time writing about the best air purifiers on the market.

Enter a room and the AirPursue will sense your presence and switch itself on, and then use its big, swiveling air-blaster cup to shoot clean air in your direction. The cup can rotate through 120 degrees, and follow you wherever you go within a radius of 16.4 feet (5 meters). The marketing materials suggest it'll be particularly helpful for allergy-sufferers. (This purifier also bears a striking resemblance to the Dyson Big+Quiet, but I'm sure that's just a coincidence.)

It's not just an air purifier, either. Like a number of Dyson purifiers, it can double up as a circulating cooling fan in warmer weather, and act as a heater when it gets cold, too. So while it's bulky, it's doing its best to justify taking up your floorspace.

The tracking technology is the most unique part, but it also looks solid in terms of other features. There's a 4-layer filter system, including H13 HEPA filter. Like any good air purifier, it has the ability to capture and remove airborne allergens, bacteria, and other pollutants from the air (here's more on what air purifiers can help with). Rather more unusually, it also promises to break down formaldehyde. The PM20 will monitor air quality and report back on the precise levels of allergens, formaldehyde, TVOC, and other contaminants via an LCD display.