Hannah is our homes editor, specialising in reviewing the latest kitchen appliances, cleaning products, mattresses and bedding, and crafting equipment. Includes 2 BONUS ice packs, for an extra cool breeze: You’ll always be cool, even in the height of summer. We’ve used this as our guide to air cooler running costs, although they may be lower depending on your tariff. Having tried other air coolers I now realise it’s a bit of an outlier, with a more efficient motor enabling a greater airflow.

Lastly, a panel of testers sit in a room kept at 30 degrees with each fan for half an hour and assess how comfortable it makes them (yes, really). The latter is a key one to look out for as it sets the fan to operate at a quieter volume, and sometimes dims the display, limiting any disruption to your sleep. Honeywell are an internationally renowned brand with the highest standards in quality, which they back with a 2 year warranty,” says AirConCentre’s Ryan Kandola. Three fan speeds: Whether you want a gentle breeze or a faster, stronger airflow theres a perfect setting for you. We measure each fan’s noise levels to find the quietest models for dozing off to, as well as its energy efficiency to find out how affordable it is to run, and its oscillation range to see how well the fan distributes air around a room.

In terms of size, weight and cooling ability (they rate it at 12,000 BTU) electriQ’s 40-litre unit begins to approach portable air conditioners. I found it quiet enough to sleep with the air chiller next to the bed and it definitely reduced the night-time temperature by a degree or two. For this test, I either tried the air coolers at home during a very hot spell, looking for a temperature reduction of at least two degrees, or consulted independent retailers with long experience in the market.

Unsurprisingly at that level, things got noisy, but fear not, its lowest setting would be quiet enough for bed-time. Thanks to a nifty built-in water tank and accompanying ice packs, this clever gadget from Princess actually does cool the air it circulates. To get the most comfort from your fan, these GHI-approved tips will help boost its ability to circulate cooler air. Includes 2 BONUS ice packs, for an extra cool breeze: You'll always be cool, even in the height of summer. Most would set you back about 1p an hour running on their highest setting, based on an electricity rate of 30p per kilowatt.Testers found its selection of air speeds improved their comfort nicely and it was generally quiet too, although not on its highest setting.