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Dyson PencilWash Cordless Wet Floor Cleaner
Best ultra-light wet floor cleanerA remarkably slim and lightweight wet floor cleaner built for quick daily maintenance on hard floors in smaller homes, but the lack of suction and self-cleaning means it complements a vacuum rather than replacing one.
What We Like
- Exceptionally light at 4.6 lbs with just 0.8 lbs felt in hand during use
- Filter-free hygienic design with separate clean and dirty water tanks
- Very quiet operation with no suction motor noise
- 170-degree lay-flat angle gets under most furniture easily
- Affordable Dyson entry point at $349
What We Don't
- No self-cleaning mode, requires manual roller washing after every use
- Struggles with stubborn dried-on stains like mud and ketchup
- Cannot clean room edges effectively due to roller design
- Does not vacuum, won't pick up dry debris like crumbs or cereal
Dyson built a wet floor cleaner that weighs less than most bags of sugar. The PencilWash, launched in March 2026, tips the scales at 4.6 lbs total and puts just 0.8 lbs in your hand during use. The handle is 1.5 inches in diameter. It genuinely looks and feels like cleaning with a giant pencil, which, credit where it’s due, is a refreshing bit of honesty in the product naming department.
But here’s the catch. To get the weight that low, Dyson stripped out some things you might expect from a $349 (MSRP) floor cleaner. There’s no suction motor. No self-cleaning cycle. And edge cleaning is genuinely poor. Whether those trade-offs make sense depends entirely on what you need from this thing.
First Impressions
Out of the box, the PencilWash surprises you. I’ve tested dozens of floor cleaners over the years, and every single one has that moment where you heft it and think, “Right, this is a piece of kit.” Not here. You pick it up with two fingers.
The 1.5-inch handle diameter is thinner than most broom handles. Dyson’s gone all-in on the pencil concept, and honestly? It works. My wrist didn’t ache after 20 minutes of cleaning. That’s unusual.
Build quality feels good despite the featherweight construction. The clean water tank (10 fl oz) and dirty water tank (12 fl oz) snap on and off without fuss. Both are small, visibly smaller than what you’d find on a Shark HydroVac XL or Dyson’s own WashG1. That’s intentional. Bigger tanks would ruin the weight advantage.
The roller is dense. Dyson claims 64,000 filaments per square centimetre, and while I didn’t count, the microfibre surface feels noticeably plusher than competitors. An 8-point precision hydration system wets the roller evenly, with two modes for different floor sensitivity. Sealed tile gets the full treatment. Sealed hardwood gets a lighter touch.
What It Does Well
On everyday messes across smooth sealed floors, the PencilWash is quietly brilliant.
Coffee drips, muddy footprints, kitchen grease from last night’s cooking, the sticky residue where a toddler dropped juice. Fresh spills and light grime come up on the first pass without drama. The roller agitates, the hydration system keeps things wet enough to dissolve the mess, and the dirty water tank collects what’s left behind.
It’s quiet too. Noticeably quieter than any wet-dry vacuum I’ve used. No suction motor means no turbine whine, just a soft hum from the roller. You could run it at 6am without waking anyone, which is genuinely useful if you’ve got kids who track breakfast across the kitchen before school.
Then there’s the 170-degree lay-flat capability. With just 6 inches of clearance needed, the PencilWash slides under beds, sofas, and low cabinets that most floor cleaners can’t reach. I got it under a mid-century sideboard that sits maybe 7 inches off the ground. My Dyson Clean+Wash Hygiene can’t get anywhere close. For anyone who actually cleans under furniture rather than pretending it doesn’t exist, this is a big deal.
And the weight factor compounds over time. Fifteen minutes into a cleaning session with a heavier machine, your arm and shoulder start complaining. Thirty minutes in, you’re done. The PencilWash at 0.8 lbs in hand removes that problem entirely. I cleaned my entire ground floor, took a break for coffee, and came back to do the upstairs without feeling like I’d done a gym session.
What It Doesn’t Do
Let me be blunt. The PencilWash doesn’t vacuum.
No suction. Zero. It won’t pick up crumbs, dust bunnies, dried pasta, or anything else that’s just sitting on the floor as dry debris. You need to sweep or vacuum before you use this, or accept that your wet roller is going to push dry bits around rather than collect them.
For a machine at this price in 2026, that’s a notable omission. The Shark HydroVac XL costs significantly less and actually vacuums and mops simultaneously. Most competitors in this price bracket do both.
Dyson’s argument is weight. Adding a suction motor adds weight, noise, and complexity. Fair enough. But it means you’re buying a single-purpose tool that handles only step two of a two-step process.
Edge cleaning is the other weak spot. The roller doesn’t reach flush against skirting boards or into corners. You’ll see a strip of maybe half an inch along every wall edge that the PencilWash just… misses. On dark tile it’s obvious. On lighter floors you might not notice, but the grime is still there.
Stubborn stains also give it trouble. Dried-on tomato sauce, old coffee rings, anything that’s had time to really bond with the floor surface. The roller agitates, but without suction pulling the loosened grime away, tougher messes sometimes smear rather than lift. A second pass helps. Sometimes a third. On really stubborn patches, I gave up and reached for a scrub brush.
The Self-Cleaning Gap
This is where the penny-pinching really stings.
The Dyson Clean+Wash Hygiene has a self-cleaning cycle with hot-air drying. The WashG1 has one too. You press a button, walk away, and the machine flushes and dries its own roller. Dead simple. Keeps everything hygienic between uses.
The PencilWash? Manual everything.
After each cleaning session, you need to remove the roller, rinse it under the tap, wring it out, and leave it to air dry. Same for the dirty water tank, which needs emptying and rinsing. If you don’t do this promptly, you get that damp-cloth smell within hours. Leave it overnight and you’re dealing with genuine mildew.
I timed my post-clean routine. About four minutes from start to finish, assuming the roller comes out without fuss (it usually does, but occasionally needs a wiggle). That’s not terrible. But after a week of daily use, the novelty of hand-washing a floor cleaner roller wears thin fast.
Dyson probably cut self-clean to save weight and hit the price point. I get the engineering logic. But a floor cleaner at this price without self-clean in 2026 feels miserly when machines costing half as much include it.
Battery and Coverage
Thirty minutes of runtime and 1,076 square feet of coverage per tank fill. Those are Dyson’s numbers.
In practice, I got about 25 to 28 minutes depending on the hydration mode. Higher moisture uses more battery and drains the clean water tank faster. The tanks themselves are the real limiter, not the battery. On heavy-moisture mode, I ran through the clean water in roughly 15 minutes of continuous use.
For context: 1,076 square feet covers a decent-sized flat or the ground floor of a typical semi-detached. If you’ve got a larger home, you’re refilling mid-clean. Not a deal-breaker, but worth knowing. Refilling takes about 30 seconds.
Charging is 3.5 hours from empty. No quick-charge option. No spare battery. If the battery dies mid-session, you’re waiting.
The tanks are filter-free, which is genuinely nice. No consumable filters to replace, no clogging to diagnose. One less thing to maintain. Given that Dyson already expects you to hand-wash the roller, at least they didn’t also saddle you with filter upkeep.
Who Is This Actually For?
Not everyone. And I don’t think Dyson would argue otherwise.
The PencilWash makes sense for studio flats and small apartments where storage space is tight and floors are all sealed hard surfaces. It’s brilliant as a supplementary cleaner in bigger homes, the thing you grab for a quick kitchen wipe-down after dinner rather than dragging out the full wet-dry setup.
Older users and anyone with limited grip strength or joint issues should pay attention. The 0.8 lbs in-hand weight and thin handle make it accessible in a way that 10+ lb floor cleaners simply aren’t. My mum has arthritis in both wrists. She can’t use my Clean+Wash Hygiene for more than five minutes. She used the PencilWash for twenty without complaint.
If you already own a decent vacuum or robot vac and just want something lightweight for wet maintenance between deep cleans, the PencilWash fills that gap well. Think of it as a powered mop replacement, not a floor cleaner replacement.
It’s not for families with kids who generate serious daily mess. It’s not for pet owners dealing with hair and tracked-in dirt. It’s not for anyone who wants a single machine to handle the whole job. For those situations, look at the Dyson Clean+Wash Hygiene or check our best wet-dry vacuums roundup for options that vacuum and mop together.
Verdict
The Dyson PencilWash is a fascinating exercise in subtraction. Strip away suction, self-cleaning, and large tanks, and what’s left is the lightest powered floor cleaner I’ve ever used. At 4.6 lbs and 0.8 lbs in hand, nothing else comes close to how effortless it feels.
On fresh spills and daily maintenance across sealed hard floors, it does a good job. Quietly. Under furniture. Without making your arm hurt.
But the 3.5 out of 5 rating reflects real gaps. No suction means sweeping or vacuuming first, always. No self-clean means hand-washing the roller after every session. Edge cleaning is poor. Stubborn stains need multiple passes or manual scrubbing. At $349 (MSRP), those compromises are hard to ignore when competitors offer more for less.
Buy the PencilWash if you value lightness above everything else, if you need a quick wet-maintenance tool for a small space, or if heavier machines cause you physical discomfort. For everyone else, the Dyson Clean+Wash Hygiene at $499 (MSRP) adds self-clean and feels like the more complete package. And if budget matters more than brand, the Shark HydroVac XL actually vacuums and mops for significantly less money.
Niche product. Done well within that niche. Just make sure you’re in it.
Also Consider
Dyson Clean+Wash Hygiene Wet and Dry Floor Cleaner
Best Dyson with self-cleanA genuinely hygienic wet and dry floor cleaner that cleans brilliantly and fixes the WashG1's biggest flaw with its hot-air drying dock, though the small tanks and premium price tag warrant consideration against larger-capacity competitors.
What We Like
- Genuinely hygienic filter-free design where dirty water never travels through the machine body
- Excellent cleaning performance on coffee, wine, mud, and mixed wet and dry messes
- Very quiet operation at approximately 63 dB
- Lightweight at 8.4 lbs with 4.4-inch flat profile for under-furniture cleaning
- Hot-air drying dock eliminates manual roller drying and prevents odour buildup
What We Don't
- Small tank capacities (0.75L clean, 0.52L dirty) require frequent refills in larger homes
- Edge cleaning imperfect on one side, doesn't reach flush to walls
- Can drip waste water when moving between rooms
Shark HydroVac XL 3-in-1 Vacuum Mop
Best budget wet-dry vacuumA budget-friendly corded wet dry vacuum that delivers solid mop-and-vac convenience for hard floors, but the small tank, lack of a dry-vacuum-only mode, and mediocre edge cleaning limit its appeal for larger homes.
What We Like
- Genuine 3-in-1 convenience vacuums and mops hard floors in a single pass
- Effective self-cleaning cycle cleans roller and internal hoses
- Antimicrobial brushroll prevents odour and bacterial growth between uses
- Lightweight at approximately 10 lbs for a corded wet dry vacuum
- Corded design means consistent power with no battery degradation concerns
What We Don't
- No vacuum-only mode on hard floors, always dispenses cleaning solution
- Small 16.9 oz clean water tank requires frequent refills on larger areas
- Weak edge cleaning struggles in tight corners compared to competitors
- Suction noticeably weaker than dedicated stick vacuums
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Frequently Asked Questions
- Does the Dyson PencilWash vacuum as well as mop?
- No. The PencilWash has no suction motor. It hydrates the floor and agitates grime with a dense microfibre roller, but it won't pick up dry debris like crumbs, dust, or pet hair. You'll need to sweep or vacuum first.
- How long does the Dyson PencilWash battery last?
- Dyson rates the PencilWash at up to 30 minutes of runtime. Actual runtime depends on which hydration mode you use. Charging from empty takes about 3.5 hours.
- Can you use the PencilWash on hardwood floors?
- Yes, on sealed hardwood. The two hydration modes let you control moisture levels, and the low-moisture mode is safe for sealed wood. Don't use it on unsealed or waxed hardwood, as standing water can cause damage.
- Does the Dyson PencilWash have a self-cleaning cycle?
- No. Unlike the Dyson Clean+Wash Hygiene or WashG1, the PencilWash requires manual disassembly and hand washing of the roller and dirty water tank after each use.
- What's the difference between the PencilWash and the Dyson WashG1?
- The WashG1 is bigger, heavier, and more capable. It has larger water tanks, a self-cleaning cycle with hot air drying, and better coverage per fill. The PencilWash trades all that for extreme lightness and a lower price at $349 (MSRP) vs $700 (MSRP).
Written By
Home Vacuum Zone
Our team researches, tests, and reviews vacuum cleaners to help you make confident buying decisions.
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