hehe
yer, the fans at the rear of the case should be extractor fans - most fans have 2 direction arrows on them somewhere to show airflow direction and rotation of fan blades.
What you're looking for in case ventilation is constant airflow from the front of the case (sometimes with additional fans on the front, top or sides to push air into the box) to the rear.
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when you’ve been so long in the desert, any water, no matter how brackish, looks like life

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