system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If the temperature outside is 65 degrees and my air conditioner is on 65 degrees, does my air conditioner have any affect on the air coming through?
gpt
FYI, most air conditioners (central, window, or mobile) take air from *inside* the house, cool it, and blow it back in, while blowing hot air outside. All that matters is the temperature inside.

So, let's assume it's 65deg in your room, and the AC is set to 65.

Chances are, it'll keep going until it hits a lower limit (say 64), wait for the temps to hit a certain upper limit (say 67) before turning back on and bringing the temperature back down. Some (window/mobile, not central) just switch to "fan" mode to circulate air when it hits the set temperature-it varies by model. 

Even at the temperature it's set at, if the AC is running, it's still doing something.

It doesn't cool the air to 65deg, it cools the air as cold as it can get it, while also sucking out humidity. The cold air and warm air mix, and it evens out to the set temperature. 

TL;DR yes, it still has an effect even when the set temperature has been reached.