Is It Safe To Run Portable Ac All Day. I run them all summer long into fall. When you run the portable air conditioner keeping it beside the window so that it can pass the hot air of the room outside it is likely to produce less noise.

Yes it is safe to leave a portable air conditioner on all night with the right arrangements. Running Your Air Conditioner 247. Its unlikely to cause a fire or break down in a way that would injure anyone.
In comparison with a traditional window air conditioner a portable air conditioner is smaller in size.
Typically leaving your air conditioning unit on all day is not going to cause any electrical disasters. In my own test having the AC run all day used 317 as much energy as turning it on after work and cooling it down to the same temperature. All portable air conditioners collect condensation as they cool. I run them all summer long into fall.
