New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging .

Large, easy-refill 5L water tank: The large capacity water tank can last up to 10 hours and is so easy to remove and refill.But it lasted all night and a few hours into the morning, which is all I needed before popping the ice packs back in the freezer ready to start again the following night. Note that fans don’t generate cool air (apart from this Princess model, which houses a water tank), so limit their usage to when you’re in the room and can feel the benefits. Having tried other air coolers I now realise it’s a bit of an outlier, with a more efficient motor enabling a greater airflow. Even the least energy-efficient – the Princess Smart Air Cooler – wasn't much more expensive, averaging about 2p an hour. To get the most comfort from your fan, these GHI-approved tips will help boost its ability to circulate cooler air.

As a fan, testers rated its adjustable oscillation, which goes up to a whopping 350 degrees, meaning it can reach multiple people dotted around the same room. This tower fan had the highest air speed of all the models we tested, blasting out air at a rate of over 800 feet per minute.

The washable filter from which the water evaporates is impregnated with silver to kill mould and bacteria.