James Dyson’s latest product is an innovative new toothbrush, the Dyson CameraJet. It’s called that because it has a camera which, even though it’s vibrating at 58,000 times a minute inspects the inside of your mouth. As the brush passes the gaps between teeth, it spots them and sprays mouthwash from a built-in reservoir to remove plaque while you brush.
I sat down with Sir James during a recent heatwave, when, despite the hot weather burning out the lift in his apartment block, leaving him to climb six storeys at the end of the day, he was on lively, positive form.