Dyson W1 PencilWash Wet and Dry Floor Cleaner

Dyson W1 PencilWash is a cordless wet floor cleaner designed to wash sealed hard floors and collect wet and dry debris. Its slim profile, lie-flat position and dock-based roller cleaning suit buyers who want a maneuverable hard-floor washer, but the listing gives no runtime figure.

At a glance

Manufacturer says the roller washes spills and stains while collecting dirt and debris from hard floors. MAX mode is specified for spot cleaning and dried-on stains.
The listing describes self-propelled movement, an ultra-slim 1.5-inch profile and a 180° lie-flat position with a stated height of 2.95 inches when flat.
A dock is described as charging the cleaner and self-cleaning its roller. The listing says to hydrate the roller for two minutes before first use.
Manufacturer describes use on sealed hard floors including tile, vinyl, laminate and sealed wooden floors.

Price

$249.99Save 29%

Reference price: ~~$349.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Self-propelled movement and a slim profile may help with steering around obstacles and beneath low furniture.
The roller is cleaned on the dock after use, reducing the amount of manual roller cleaning described by the manufacturer.
The listing describes an anti-tangle comb for hair up to 13 inches long and edge-to-edge debris collection.

Cons

This is specified for hard-floor washing, not as an all-purpose carpet cleaner.
Roller replacement is recommended every 6–12 months, so replacement maintenance is part of the stated care routine.

Technical specifications

12 specifications

Identity
Brand	Dyson
Model	Dyson W1 PencilWash™ wet and dry cleaner + Dok™ cordless wet floor cleaner
Color	Ultra Blue

Power and filtration
Power configuration	Battery Powered
Filter type	Cartridge
Voltage	14.68 volts

Dimensions and capacity
Weight listed	6 pounds
Dimensions (L × W × H)	11"L x 7.9"W x 45.6"H
Capacity	0.09 gallons

Use
Recommended surface	All floors
Indoor/outdoor use	Indoor
Special feature	Cordless

What to know before buying

Listing details to confirm

The listed capacity of 0.09 gallons differs from the feature description's 290ml clean-water tank. Coverage of up to 3445 sqft is explicitly simulated in low-hydration mode from one clean-water tank filling and may vary with mode, use and cleaning routine. Runtime is not stated in the supplied listing details. Follow the two-minute first-use roller hydration instruction. The suggested roller replacement interval is 6–12 months.

What’s in the box

Included

PencilWash machine
Wet roller cleaner head
Charging dock
Charging cord

Who is it for?

A good fit for

Homes with sealed hard floors such as tile, vinyl, laminate or sealed wood.
Buyers who prioritize maneuverability under low furniture and dock-based roller cleaning.

Less suited to

Buyers seeking a cleaner specified for carpet or mixed carpet-and-hard-floor cleaning.
Buyers who need a stated runtime before choosing a cordless cleaner.

Dyson W1 PencilWash Wet and Dry Floor Cleaner · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 16 ratings

5 stars66%66%
4 stars20%20%
3 stars14%14%
2 stars0%0%
1 star0%0%

The available evidence consists of aggregate ratings rather than customer comments. The overall distribution leans positive, with a substantial three-star portion as well, but it does not explain what buyers liked or disliked. Treat it as limited context, not evidence of performance or a specific issue. For a cordless hard-floor washer, runtime and floor compatibility remain useful points to assess from the product information.

Frequently asked questions

What floors is the W1 PencilWash intended for?

The manufacturer describes it for sealed hard floors, including tile, vinyl, laminate and sealed wooden floors. The general surface field says “All floors,” but the detailed use description is specifically about sealed hard floors.

Does it clean beneath low furniture?

The listing describes a 180° lie-flat position measuring 2.95 inches high, intended to reach beneath low furniture.

Does the cleaner have a stated runtime?

No runtime figure appears in the supplied product details, so the available information does not establish how long it runs per charge.

What maintenance does the listing specify?

The listing says to run the cleaner for two minutes to hydrate the roller before first use, and recommends replacing the roller every 6–12 months. It also describes roller self-cleaning on the dock.