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I've Tried Dozens of Cordless Vacuums -- Dyson's PencilVac Is the Sleekest Yet

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Cordless vacuums are lighter than upright or corded vacuums but still have heavyweight cleaning power. Some of the best cordless vacuums I've tested come from Dyson. The company features prominently on our list of the best cordless vacuums, earning spots for dust-busting and wet-dry mopping, even though its models tend to be on the pricier side.

Dyson's new PencilVac, now available for sale in the US, is different. As the name suggests, the PencilVac is shaped a lot like a pencil. It felt more like holding a broom than a vacuum. It's also the lightest and thinnest cordless vacuum I've ever used, measuring just 38 millimeters in diameter and weighing less than 4 pounds (1.8 kilograms). The entire motor (a Hyperdymium 140k motor) is somehow small enough to fit into the handle, which isn't any bigger than the rest of the vacuum.

The PencilVac is just 38mm in diameter, including the motor that fits the handle. Ajay Kumar

While cordless vacuums are easier to maneuver than corded ones, they can be notably top-heavy, with some as heavy as 12 pounds, and even the lighter ones usually weigh around 6 or 7 pounds.

Watch this: I Spoke with James Dyson About Product Design and the Lightest and Thinnest Vacuum on the Market 10:13

Key specs:

38mm diameter and weighs less than 4 pounds (1.8kg)

Four conical Fluffycones cleaner heads that can detangle long hair

Dyson Hyperdymium 140k motor, 34% more power dense with 55 air watts of suction

A dust separation system can capture 99.99% of particles as small as 0.3 microns

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