We tested its air conditioning functions in our test lab - read our full review to find out if it can cool you down swiftly, efficiently and without driving you mad with noise. The "-" symbol is for decreasing the temperature, while the "+" symbol is for increasing the temperature. It stands on a set of castor wheels and features integrated side handles, meaning you'll be able to move it from room to room with ease.

Additionally, ensure that the air filter is clean and free from debris, as a clogged filter can cause abnormal noise.

You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice. Overall, the AEG AXP34U338HW air-conditioning unit possess high quality for both its heating and cooling functions, with respectable energy efficiency ratings as reflected in its A class energy efficiency classification for cooling.

The bundled remote – which takes two AAA batteries – allows you to turn the unit on or off, adjust the temperature, switch between the various modes and fan speeds, set a timer and enable sleep mode. CHILLFLEX PRO PORTABLE RAC Aenjoy ideal conditions at home with the ChillFlex Pro: a portable air-conditioner that maintains exactly the right temperature. The large control panel at the top of the unit has the same list of features, along with a small LCD screen in the centre which displays the output temperature. Another option is to have the air conditioner ducted outside it to use our AWK04 window kit, which is available to purchase here. It has its limitations – it’s not as portable as other AC units, for example – but it’s simple to use, performs remarkably well and doesn’t produce much noise.The sleep mode, for instance, never reached above 52dB in my tests, which isn’t much louder than the ambient noise outside my east London flat. The top outlet on the appliance is designed for the appliance to be constantly draining through a garden hose. The AEG ChillFlex Pro AXP26U338BW also offers a range of convenient features for enhanced usability. We design our appliances around you - putting you in complete control and guaranteeing exceptional performance and results.