Is it safe to leave portable air conditioners during the night?
All portable air conditioners collect condensation as they cool. This is generally collected in a water tray in the air conditioning units themselves. If the water is about to overflow, the portable air conditioner will shut itself off. Generally, portable air conditioners have this same function if their air filter is about to overflow. The only real hazard is if you have plugged a portable air conditioner into an overused plug. Room air conditioners use a good amount of electricity and can cause a short if they don’t have a dedicated plug. Otherwise, portable air conditioners are as safe as any other appliance or air conditioner.
