Dyson worked out how to make a teeny tiny motor, and now it just can’t stop miniaturizing its appliances

Dyson just announced the PencilWash, a motorized wet floor cleaner that’s roughly the same size as a regular, manual mop. This isn’t the first time Dyson has shrunk down a traditionally bulky appliance: the PencilWash is a sister product to the Dyson PencilVac FluffyCones, an almost impossibly compact cordless vacuum.

The downsizing trend began life in a less immediately eye-catching way, in Dyson’s haircare department. The brand had already shaken up the haircare market with its original Supersonic hair dryer, but for its professional-only Supersonic r it redesigned its inner workings to be far more streamlined and ‘power-dense’.

That meant all the mechanics could be fitted into a tubular design that looks odd, but turned out to be excellent for extended, meticulous hair styling. Dyson recognized that it was onto a good thing, and in March last year it made the Supersonic r available to consumers, too.

Dyson then decided that if it could make a hair dryer that was 1.5 inches / 3.8cm in diameter, it could surely make a vacuum that was 1.5 inches / 3.8cm in diameter, too. Unbelievably, it was successful: all the inner workings of the PencilVac have been squeezed into a handle that’s the same width as the Supersonic r. To make it happen, the brand had to engineer a Hyperdymium 140k motor that’s a minuscule 1.1 inches / 2.8cm wide.

The same tech powers the PencilWash. And who knows where it’ll come in next — Dyson is clearly on a shrinking spree, and it would be silly to stop there.

“We’re keen on making machines smaller and lighter while dramatically improving performance,” says Dyson CTO John Churchill. “The PencilWash… brings the simplicity of a broom together with the precision and power from Dyson engineering.”