• Dyson has unveiled the PencilWash wet floor cleaner
• Uses the same ultra-slim, light build as the PencilVac vacuum
• It has two hydration modes, with water tanks hidden in the floorhead

Dyson has announced a new wet floor cleaner that’s incredibly compact and lightweight. In fact, the new PencilWash is about the size and shape of an old-school, manual mop. All the mechanics have been shrunk down and squeezed into the handle, while the water tanks are tucked into the floorhead.

Announcing the PencilWash, John Churchill, Dyson’s Chief Technology Officer, said: “We’re keen on making machines smaller and lighter while dramatically improving performance. PencilWash applies that thinking to wet cleaning: our slimmest, ultra‑light format that glides effortlessly and reaches where others can’t. It brings the simplicity of a broom together with the precision and power from Dyson engineering.”

The handle itself is 1.5 inches / 38mm in diameter — just a little wider than a regular broom handle. It’s designed so you can steer the whole thing effortlessly, simply by twisting the handle.

The PencilWash weighs 4.9lbs / 2.2kg, but most of that (minimal) weight is concentrated in the floorhead, so Dyson says the weight in your hand will be more like 0.8lbs / 0.38kg. It’s designed to be able to sneak under furniture — it lies flat to 170 degrees, and in this mode it’s just 15cm tall. It’s built for use on hard floors, and can handle wet and dry spills.

The 300ml clean-water tank is apparently capable of cleaning up to 100m² of flooring. The cordless design has a maximum 30-minute runtime, and you can pick up a backup battery to swap in if you want to extend that.

As is the case with the whole Dyson wet-cleaner range, there’s no suction — instead, the PencilWash uses hydration and agitation to get your floors clean. The roller is covered with densely-packed microfiber, to absorb liquid spills and buff off dirt. It’s continuously fed with clean water as it rolls around, while the dirty stuff is extracted, so you’re not just smearing the dirt around your floors. You can choose from two hydration modes.

Unusually, there’s no filter. The press release suggests filters simply “trap dirt, breed bacteria, emit odors, and [are] difficult and unpleasant to clean” whereas this filter-free design “removes the risk of sludge, blockages, or drop in performance”. I won’t quibble with the idea that filters are nasty to clean, and if this design can avoid blockages and grime buildup without one, that’s excellent news.

Where does it sit in the wider range?

I haven’t had any hands-on time with this new cleaner yet, but I have been testing the PencilVac, which is the sister model, unveiled in June 2025. It has a similar, broom-shaped build, but swaps the mopping floorhead for a vacuuming one. That cleaner is supremely maneuverable and incredibly nimble — I’m hopeful Dyson has recreated that same magic with the PencilWash.

The PencilWash is the third dedicated wet cleaner in Dyson’s range, sitting alongside the WashG1 (which went on sale August 2024) and the Clean+Wash Hygiene (just launched at time of writing). However, in some ways the design is more similar to the Submarine floorhead on the Dyson V15s Detect Submarine, with the tanks all contained within the floorhead.

The Dyson PencilWash goes on sale on 17 March in the US, and 23 February in the UK, at a list price of $349 / £299.99. I’m awaiting pricing and availability information for Australia.

Ruth is TechRadar’s Homes Editor specializing in air (vacuum cleaners, fans, air purifiers), and hair (hair dryers, straighteners and stylers). She has been in consumer journalism since 2020, reviewing and writing about everything from outdoor kit to mattresses and wellness gadgets, with stints on Tom’s Guide and T3.