Dyson says it was inspired to create the PencilVac by its hair dryers, which pack small yet powerful motors inside their handles. The PencilVac has Dyson's smallest, most powerful vacuum cleaner motor to date, a Hyperdymium 140k. The motor is barely over an inch in diameter (28mm), yet it can reach 140,000 RPM.

Dyson's PencilVac is so thin and light it feels more like a broom than a cordless vacuum. Here's how using it went.

The new Dyson PencilVac vacuum cleaner contains a battery, motor, suction system, and dustbin in a tubular handle that's 3.8cm in diameter.