The air cooler as we know it today was patented in 1902 by Willis Carrier”, says expert Nick Kandola of the AirConCentre. The greater the range of speeds and the wider the difference between them, the more you can adjust the fan to suit you. Getting something totally free is likely to get a true MoneySaver's heart pumping faster than any cardio workout ever could. This will keep your home environment just right all year round as it also doubles as a heater (read what we thought of its warming capabilities here. It has a wider oscillation than many air coolers, rotating 120 degrees, but I found it more effective in fixed mode, blowing the chilled air directly towards the bed in a steady stream.

Having tried other air coolers I now realise it’s a bit of an outlier, with a more efficient motor enabling a greater airflow. The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. 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. If you're an Easyjet passenger who was issued a voucher during the Covid-19 pandemic, you've less than one week left to use it before it expires on 31 January 2024.

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. The Princess has a ‘sleep’ setting, which means it comes on only intermittently to maintain a cool temperature.

Given that most of us are looking for air coolers to chill a bedroom, it’s fairly important that they don’t make a racket. Good Housekeeping participates in various affiliate marketing programs, which means we may get paid commissions on editorially chosen products purchased through our links to retailer sites. Just add water and, using Hydro-Cooling Technology, Fast Chill Tower actively cools the air in your room creating an instant cool breeze with the natural power of water. The higher power does mean the Symphony costs more to run and it is noticeably noisier than other air coolers, especially at top speed.It also used more electricity than most (2p when running for one hour on high), but this isn’t too surprising given its additional functionality. 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.

The Cool + Purify Bladeless Fan is two products in one: a dual-filtration Air Purifier and a powerful cooling Bladeless Tower Fan. If you want a fan you can easily move about the house, this lightweight model (the lightest we tested) makes a good choice. The washable filter from which the water evaporates is impregnated with silver to kill mould and bacteria. All the fans on our list rotate to some extent, but the models with greater ranges of motion can help improve the comfort of several people at once. Even the least energy-efficient – the Princess Smart Air Cooler – wasn't much more expensive, averaging about 2p an hour.

The more powerful units use more energy, although all air coolers are much cheaper to run than air conditioners. The chilling power comes from an advanced Smart Chill Filter which actively and instantly transforms warm, dry air into cool, clean and refreshing air! On the plus side, the DG1903 (there’s no brand name) does have a bigger water tank and the power cable is a tad longer. One of our go-to brands for vacuums, it’s not surprising that Dyson impressed, earning another top spot here. Whether you want cool, fresh air circulated around your whole room or need a cool breeze directly at you on a hot summer’s day, you’ll have refreshing air exactly where you want it.