With a durable hard plastic exterior and convenient shoulder strap, plus efficient thermoelectric cooling or warming, your lunch and snacks will be ready to eat whenever and wherever you are. You wouldn’t choose it for cooling your bedroom at night, but it’s the only one we reviewed that can stand a chance of cooling a 40 square-metre space. 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. In the end, despite being a few pounds more expensive, I thought the Tristar just about edged it for being lighter and easier to move around. This creates a refreshing, natural-feeling cool breeze that’s ideal for even the hottest summer days.

Moreover, every user should be aware that air coolers simply cannot cool down a room from 30 °C to 23 °C. The associated HomeWizard app (for iOS or Android) allows you to give it voice commands using Siri or Google Assistant.

Please note some larger products are delivered to kerb-side (the street outside your home), it is at the drivers discretion if they can deliver the item to another location on the property. The night mode works on a similar principle, but gradually reduces the maximum wind speed until the device finally stops operating. This 15L model has been designed to operate silently whilst providing effective cooling for your drinks and snacks. It uses a tank of cool water and ice packs to cool the air, and a fan to circulate it around the room. 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.

This means you don’t need to remove the water tank to refill it – just lift the lid on top of the unit and pour into the spout. They're trendy, incredibly cosy and easy to maintain that suits your sleep preferences and personal style. It offers incredible cooling performance at a low cost and, as it uses just 75W power, it’s cheap to run, too.Registered office: Next Day Fans, Tayson House, Methley Road, Castleford, West Yorkshire, WF10 1PA, GB. Infinitely refreshing, thanks to built-in floor rollers: the Klarstein Cooler Rush air cooler is completely mobile and does its job where a cool breeze is most urgent. This is part of their 3D range, which means it has pop-up touch screens, three-sided high efficiency cooling pads and i-pure multistage filters.