Mel has been using the Kärcher Window Vac for several years, on a daily basis throughout the winter months, to remove water from single-glazed windows. It is also frequently used on the shower and to vacuum up spillages from the kitchen worktop. About the author

It comes with two interchangeable squeegee heads, which can be detached from the suction nozzle for cleaning after use. These heads measure in at 18cm and 28cm. Both feature the new lip technology to allow for upper-edge cleaning to the ground without interruption, to achieve a streak-free finish. The water tank/collection bottle can be easily emptied by undoing the rubber bung and the whole water tank can be removed for cleaning (although you have to detach the vac head to do this). The cleaning cloth is attached by Velcro so can easily be removed for washing (in a washing machine). Read next: Unibond Aero 360 Compact Moisture Absorber review: an honest review of the budget-friendly dehumidifier alternative How we tested We judge how comfortable each window vac is to hold and empty. We also do this wearing Cambridge Simulation Gloves – a piece of kit that helps replicate the experience of users who suffer with limited hand movement. Cleaning extras: Many window vacs come with cleaning bottles, microfibre pads and even their own branded cleaning spray. While useful, these extras are unlikely to perform any better than the stuff you already have in your cleaning cupboard.

Laura started writing Swears By articles for Mumsnet in 2021 and has recently taken over responsibility for laundry content. She writes buyers guides, cleaning articles and tests products, to help Mumsnetters make informed choices when it comes to parting with their pennies. After a good charge of around two hours, we used the Karcher for cleaning windows (a set of small French doors). It took us around two minutes to clean the windows which involved first spraying them with the cleaning tool then going over a couple of times with the vac.

Battery charger, standard spray bottle with microfibre cleaning cloth, window cleaner concentrate (1 x 20ml), interchangeable suction nozzle Among its many included accessories are a smaller 170mm suction head for hard-to-reach areas and a microfibre attachment to spread detergent on your windows. There’s a built-in LED battery indicator and you can buy additional batteries so that you’ve always got a fully charged one ready to go. The Karcher Window Vac WV 6 Premium is a cordless, handheld vacuum designed to remove drips and streaks from smooth surfaces. It weighs 0.8kg and measures 126 x 280 x 310mm (l x w x h), which makes it relatively easy and comfortable to use. The WV2 Plus is supplied with the main vac unit, a 11″ (28cm) wide suction blade head, a spray bottle/microfibre cloth cleaning tool, charger plug and a small sample sachet of cleaning solution.Condensation on windows can be the bane of life for many over the winter months. Except those smart enough to have bought a Kärcher Window Vac. The set consist of 2 extending poles; one for the window vac and a separate one that has a washable cleaning head attachment. Each pole is 1.2 metres in length but can be extended to 1.9 metres. Your Karcher window vac can be securely mounted on the base plate and attached with the rubber strap. It’s worth noting that it isn’t an essential cleaning appliance. It’s more of a handy add-on, as you can clean surfaces with spray and a cloth. But it did an effective job leaving areas streak-free, so it’s worth it if you’re looking for a simple way to keep on top of windows, mirrors and tiles. Mel said: “In the mornings in the winter, because we're not double glazed, the water is running down our windows and it's obviously going to damage the paintwork. With this, I can vacuum all of it up. It’s brilliant and it doesn't take very long.” So, what can the window vac be used for? Well obviously, the main use is for cleaning windows but in our experience, it can also be used for cleaning shower doors and removing condensation from surfaces. The window vac is extremely versatile and we found it particularly useful for cleaning up liquid spills but you may find it handy for other applications. In fact, it will perform great on all smooth surfaces. What’s in the box?