How long does it take for an AC to cool a room? 5 expert-approved tips to boost performance

We answer 'how long does it take for an AC to cool a room?' Here is a white rectangular AC unit with a black vent, mounted onto a light purple wall.

Sweating it out and wondering when exactly your AC is going to pump sweet cool air around your room? Don't panic.

I've asked HVAC experts about the time it takes small, medium, and large sized rooms to be cooled down by AC, quizzed them on which factors can impact this and their top tips for speeding up the process. Proper insulation and placement are both key parts and they have plenty more advice.