A handheld window vacuum that has been hailed as a ‘game changer’ by homeowners and renters for anyone ‘driven mad’ by condensation has been slashed in price in the brand’s huge Black Friday sale – and it is now cheaper than Amazon. The Karcher WV2 Plus has been flooded with hundreds of glowing reviews, with those who have tried it saying it works ‘quickly and efficiently’.

The handheld surface cleaner is just £49.99, down from £79.99, with free delivery, meaning that it is almost £7 cheaper than Amazon. The window vac has been designed to suck up moisture and leave mirrors, tiles, shower screens and glass tables effortlessly streak-free, which is perfect for those constantly washing up after pets or children.

The WV2 Plus has also been manufactured to remove condensation, whether it is inside your home or your car windows – just one wipe and the job’s done. It is fully rechargeable, lightweight and easy to use, and even cleans spills on floors and worktops.

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The window vacuum comes comes equipped with a spray bottle, a microfibre cloth and a sachet of 20ml window cleaning concentrate. And if you would like a big bottle (500ml) of the cleaning solution, you can buy it separately from Karcher for £6.49.

Fans of the Karcher WV 2 Plus are raving about the gadget, with the window cleaner amassing a star-rating of 4.4 stars out of five from over 370 reviews. Customers have applauded how easy the item is to use, as well as how fast and well it cleans surfaces.

One review said: “I use the Karcher WV 2 Plus to use on the glass door of my shower to keep the glass looking clean and reduce the build up of hard water deposits. I also purchased the narrow nozzle attachment – this is fantastic on the small-paned Georgian windows of my period listed home, to clear condensation after a cold night. This helps reduce damage to the original window frames, which would be troublesome and expensive to repair or replace. A fantastic product.”

Another reviewer wrote: “I bought this not just to clean my windows, but to remove the condensation from my windows and remove water from my shower screens. Easy to use and mess-free. Sucks up water really well, I’m very impressed.”

A third penned: “I absolutely love this. It’s everything I hoped it would be and makes window cleaning much quicker and easier. It leaves no streaks.”

However, one reviewer gave the Karcher gadget a three-star review and said: “A little disappointed as the new machine has less suction than the first Karcher WV60 which I’ve had for some years now. I am also not keen on the on/off button doesn’t always work when pressed as it needs to be deployed exactly in the middle and pressed hard.”

But another gave the WV 2 Plus a glowing, five-star review and said: “I’m not into tech or products that don’t have a value for money, I bought this on a whim as the reviews were so good but was still sceptical. However, I absolutely love it to the point I’ve bought another for my daughter.

“Window cleaning had previously been time consuming and no matter what I tried quite streaky. This is quick, great streak free finish and easy to clean. I’ve done windows inside and out in minutes then continued on with all mirrors and then even the shower screen. This is by far the best purchase I have made for some time.”

Also on sale ahead of Black Friday is the Beldray BEL0749 Cordless Window Vac which is available from Amazon. Coming in at £24, it is a more budget-friendly alternative to the Karcher WV 2 Plus.