It's not every day you can score a cordless stick vacuum for $320 off. Take advantage of this popular deal while you still can.

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.

I compared Hoover's HF9 cordless vacuum cleaner to my Dyson V10 and there was one clear winner that's just had a £140 discount