When you turn on the air con, you will feel the blissful relief of actively cold air passing over you right away. They'll ...

Air conditioners are measured in British Thermal Units (BTUs) – the higher the BTU, the more powerful it is. A portable AC with 7,000 BTUs should cool a small room of around 18-20 square metres. A ...

The drawback is that they only work with sash or sliding windows. This was Alex’s top pick in a round-up of the best portable air conditioning units, where he praised it for being "smaller and lighter ...