If you haven't noticed already, the heat is making a comeback, with parts of the UK set to see temperatures climb to 30°C and beyond over the next week. However, before you rush out and spend hundreds on a portable air conditioner, grab your fan and try this simple trick instead.
The best fans don't actually lower the temperature of a room – they cool you by circulating air across your skin, helping sweat evaporate more quickly. The problem is, if your room is already full of warm air, your fan is simply moving that hot air around, which isn't going to make the space feel much cooler.
