No drips, no streaks · review
A 2 kPa cordless window vacuum with a silicone blade, a 100 ml tank and a 300 ml spray bottle.
Where this ends up The cheapest here, and the only one that names its blade material and gives you the whole three-step method in writing. It also has the smallest tank and the shortest runtime of the five identical cheap machines on this shelf.
2 kPa is 2000 Pa, and at least five of the thirteen machines on this shelf publish exactly that figure: this, the SOMZOKY at $45.99, the ArtnPlan at $37.99, the GARYOG at $66.30, and the Oqioprd at $39.99 — whose bullet says 2000 Pa while its own title says 2200.
The two Kärcher machines publish no suction figure at all.
So the specification five listings put in their titles is the one on which they are all the same. It is not what separates them.
What 2000 Pa actually means: about two per cent of atmospheric pressure, enough to hold a column of water roughly 20 centimeters high. Which is ample, because a window vacuum is not lifting dust against gravity. It is drawing a thin film of water off a flat surface, through a slot pressed against the glass.
The seal does most of the work. The suction only has to move water the last few millimeters into the tank — and that is why the brand that introduced the category does not quote a number. On this kind of tool, how well the blade sits on the glass matters more than how hard the motor pulls.
Which makes the next section the one that counts.
“the built-in 11” (280mm) soft silicone squeegee blade is gentle on surfaces, preventing scratches or stains.”
Across the shelf: the GARYOG says “soft rubber”; Kärcher mention “replaceable silicone squeegee lips” among the WV 2’s accessories; the SOMZOKY, Oqioprd and ArtnPlan do not say.
Two properties of silicone matter here.
It stays supple. A blade that has hardened with age and sunlight is exactly what leaves streaks: it stops conforming to the glass and skips rather than wiping. Hardening is the ordinary failure mode of a rubber squeegee.
It does not mark. Silicone carries none of the carbon loading that makes some black rubbers transfer a grey smudge onto a light surface — and “preventing scratches or stains” is naming that.
The width is the shelf standard: 280 mm (11 in), 11 inches, the same on five of seven. The two Kärchers publish no width, though the WV 2’s own description mentions a “separately available smaller nozzle accessory” for “narrow window panes and divided glass doors”, which tells you theirs is the wide one too.
The thing to establish before buying any of these is whether the blade can be replaced. It is a wear part and it is what will end the machine’s useful life. Two listings here ship a spare: the SOMZOKY (“two identical 11-inch blades — one for daily use, one as a spare”) and the GARYOG (“Unlike many competitors, this… includes an extra replacement blade”). This page does not say whether a replacement exists.
100 ml. The shelf:
Oqioprd — 200 ml · SOMZOKY — 150 ml · GARYOG — 150 ml · Kärcher WV 2 — 5 fl. oz., about 148 ml · this — 100 ml · ArtnPlan and Kärcher WV 1 Plus — not published
Bullet two gives the honest instruction: “Empty the tank when it reaches the max level.”
And the two figures on this page sit in tension with each other. The spray bottle is 300 ml — the largest on the shelf — and the tank that receives that water is 100 ml. A full bottle of solution is three tank-fulls.
Which matters because correct technique means using plenty of solution. The Kärcher WV 1 Plus listing says so twice: “keep surfaces generously wet while cleaning”, because a dry surface is what makes a squeegee streak.
In practice: once or twice for a shower screen, several times for a room of windows. It detaches and rinses under a tap in seconds, so it is an interruption rather than a fault — but this is the one place the machine is plainly behind the shelf.
2000 mAh → up to 30 minutes. Lay the shelf out:
SOMZOKY — 2200 mAh → 45+ minutes GARYOG — 2200 mAh → up to 40 minutes Kärcher WV 2 — 35 minutes, lithium-ion, no mAh given this — 2000 mAh → up to 30 minutes Kärcher WV 1 Plus — 25 minutes Oqioprd — 2200 mAh → no runtime published ArtnPlan — 2200 mAh → no runtime published
This has 9 per cent less battery than the SOMZOKY and declares 33 per cent less runtime. Both figures cannot follow from capacity alone — so either the motors draw differently, or one of the claims is optimistic.
Which is the useful lesson: milliamp-hours are not runtime. At least two of the thirteen machines here publish a capacity and then decline to convert it, and a capacity on its own tells you nothing without the current the motor draws.
Thirty minutes is enough for the work, though. This is a tool used in short bursts — spray, wipe, vacuum, move on — and half an hour of motor time covers a bathroom and a few windows. The cordless machines on this shelf all recharge between sessions rather than during them.
About 1.7 lb is the published weight, around 771 g. The heaviest claimed figure on this shelf — the Kärcher WV 1 Plus is 1.1 lb / 499 g, the WV 2 1.4 lb, the GARYOG claims 1.1 lb for the handset — and worth knowing because you hold this up at arm’s length with a full tank.
“First, use the included spray bottle to mist the surface; Next, wipe away grime with the microfiber pad; Finally, glide the window vac over the area.”
This is worth quoting because it is what the category is, and the titles obscure it.
A window vacuum does not clean the glass. It removes the water. The microfibre pad does the cleaning; the machine’s job is to take the dirty solution off before it dries and leaves a film.
at least seven of the thirteen listings here describe the same three steps once you read past the headline. So the “streak-free in one pass” claims that five of them make refer only to the third step — one pass of the vacuum, after two passes of your hand.
Which is not a criticism of the tool. Removing the water mechanically is genuinely faster and cleaner than chasing it with paper towels, and it is why the Kärcher listings claim “3x faster” overall. It is simply not a one-step machine, and it helps to know that before you buy one.
No pole. Two machines here have one, both 31–40 inches: the SOMZOKY and the GARYOG. Kärcher sell a “telescopic extension pole set” for the WV 2 separately. Without one, this reaches as far as your arm — fine for a shower screen, not for a transom or a skylight.
No spare blade, and no statement that the blade is replaceable.
No detergent. The spray bottle is included and empty. Both Kärchers ship 16.9 fl. oz. of concentrated glass cleaner, and the WV 1 Plus publishes the dilution — “20 ml of cleaner on 250 ml of water” — which works out at about 25 bottles, or roughly 6.75 liters of made-up solution. That is a real difference in what is in the box, and none of the five cheap listings here includes any.
No textured-surface caution, though bullet four names “tiles”. The Kärcher WV 1 Plus is the only listing on this shelf that addresses it: “When cleaning textured tile, apply light pressure and glide slowly for an optimal vacuum seal.” A squeegee needs a flat plane to seal against, and a grout line breaks the vacuum — so tiled walls work, with technique, and heavily textured ones work poorly.
No upside-down or edge capability stated. This is the question the shelf mostly ignores: every window has a bottom edge where the water collects, and getting a vacuum into it means working the tool sideways or inverted. Only the Kärcher WV 2 claims it outright — “360° Comfort!Clean technology to work sideways or completely upside down… without streaks or leaks” — and the Kärcher WV 1 Plus explains why it is hard, describing its own seal as gravity-fed and telling you to turn the unit sideways for the bottom edge.
No charging time or charger type. “A charger” is all that is said; the Kärcher WV 2 charges over USB-C.
No warranty.
Read on the day this page was built: $36 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.
| Suction | 2 kPa, which is 2000 Pa — the same figure five of seven machines here publish |
|---|---|
| Blade | 11 inches / 280 mm, soft silicone — the only listing here to name silicone outright |
| Dirty water tank | 100 ml — the smallest on this shelf |
| Spray bottle | 300 ml, the largest here, with a removable washable microfibre cloth |
| Battery | 2000 mAh, giving up to 30 minutes |
| Weight | About 1.7 lb — about 771 g (27.2 oz) |
| Controls | A one-button switch |
| Method published | Mist, wipe with the pad, then glide the vac over the area |
| Tank advice | Empty it when it reaches the max level |
| Extension pole | None — two machines on this shelf have one |
| Spare blade | None — two machines on this shelf include one |
| Detergent | None included; the two Kärchers ship 16.9 fl oz of concentrate |
| Reference | HH25016 |
| Runtime per charge | 30 minutes, the shortest of the five cheap machines here |
| Amazon reference | B0F8B12XNC |
| EAN | 0820909620563 |
Yes, and the figure is less interesting than it looks because almost everything here publishes it. 2 kPa is 2000 Pa, and at least five of the thirteen machines on this shelf quote exactly that: this, the SOMZOKY, the ArtnPlan, the GARYOG, and the Oqioprd (whose bullet says 2000 Pa while its own title says 2200). The two Kärcher machines publish no suction figure at all. So the specification five listings put in their titles is the one on which they are identical. What 2000 Pa means physically: it is about two per cent of atmospheric pressure, enough to hold a column of water roughly 20 centimeters high. That is ample for the job, because a window vacuum is not lifting dust against gravity — it is drawing a thin film of water off a flat surface through a slot pressed against the glass. The seal does most of the work; the suction only has to move the water the last few millimeters into the tank. Which is why Kärcher, who introduced the category, do not quote a number: on a tool like this, how well the blade seals matters more than how hard the motor pulls, and this listing addresses that directly with the blade material in the next answer.
Because it is the part that touches your glass, and this is the only cheap listing here that says what it is made of. Bullet one: "the built-in 11" (280mm (11 in)) soft silicone squeegee blade is gentle on surfaces, preventing scratches or stains." Across the shelf, the GARYOG says "soft rubber", Kärcher mention "replaceable silicone squeegee lips" among the WV 2 accessories, and the SOMZOKY, Oqioprd and ArtnPlan do not say at all. Silicone has two advantages that matter here. It stays supple rather than hardening with age and sunlight, and a blade that has gone hard is exactly what leaves streaks — it stops conforming to the glass and skips instead of wiping. And it does not carry the carbon loading that makes some black rubbers mark a light surface. The practical point either way is that a squeegee blade is a wear part. It is the thing that will end this machine’s useful life, and only two listings on this shelf include a spare: the SOMZOKY at $45.99 ("two identical 11-inch blades — one for daily use, one as a spare") and the GARYOG at $66.30. Nothing here says whether this blade is replaceable at all, which is the question to ask before buying any of them.
More often than on anything else here, and the listing is at least straight about it. 100 ml is the smallest tank on this shelf: the Oqioprd holds 200 ml, the SOMZOKY and GARYOG 150 ml each, the Kärcher WV 2 a stated 5 fl. oz. which is about 148 ml, and the ArtnPlan and Kärcher WV 1 Plus do not publish a figure. Bullet two gives the honest instruction: "Empty the tank when it reaches the max level." What that means in use depends on how wet you work, and here the two numbers on this page are in tension. The spray bottle is 300 ml — the largest on the shelf — and the tank that has to receive that water is 100 ml. So a full bottle of solution is three tank-fulls. The Kärcher listings make the same point from the other side, advising you to "keep surfaces generously wet" for a clean finish, which is correct technique and fills a tank faster. In practice, expect to empty it once or twice doing a shower screen and several times doing a room of windows — it empties in seconds at a tap, so it is an interruption rather than a problem, but it is the one place this machine is clearly behind the shelf.
cleaning machines from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.
| Model | Price | Suction | Dirty water tank | Battery | Weight |
|---|---|---|---|---|---|
| HAUSHOF HH25016 | $36 | 2 kPa, which is 2000 Pa — the same figure five of seven machines here publish | 100 ml — the smallest on this shelf | 2000 mAh, giving up to 30 minutes | About 1.7 lb — about 771 g (27.2 oz) |
| ArtnPlan WV-1 | $38 | 2000 Pa — the same figure five of seven machines here publish | Not published — the only machine here that omits it entirely | 2200 mAh | 907 g (32 oz) at the catalog; no figure in the bullets |
| Oqioprd Not stated by the maker | $40 | 2000 Pa in the bullets, 2200 Pa in the title — see the FAQ | 200 ml — the largest on this shelf | 2200 mAh | Not published |
| SOMZOKY WV111 | $46 | 2000 Pa — the same figure five of seven machines here publish | 150 ml, transparent and detachable | 2200 mAh | Not published |
Details checked on October 4, 2026.
Shower screens and mirrors within arm’s reach, at the lowest price on the shelf
Amazon reports what buyers took in the month before this page was last checked: at least 100.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for cleaning machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Up to 35 windows per charge · LED battery indicator · streak-free
Bosch quotes its runtime in windows rather than minutes — which is the number you actually wanted.
Best for: Households already using Bosch home tools, and anyone who wants a runtime figure they can act on
≈ $100
360° Comfort!Clean · vertical, horizontal or overhead · cordless
A window vacuum that works upside down — which sounds like a detail until you reach a skylight.
Best for: Shower screens, mirrors and skylights — the everyday glass rather than a whole house
20 min runtime · 100 ml tank · 0.5 kg (1.1 lb) · spray bottle included
Half a kilo in the hand and twenty minutes of battery — the cheapest way to stop leaving streaks.
Best for: Flats, shower screens and mirrors — the everyday glass rather than a whole house at once
