An exhaust fan takes the air from the case and pushes it out into the surroundings. So wouldn’t that very act of removing air from the case create lower pressure in the case, causing air from the outside to get sucked in, regardless of the existence of intake fans?
In: Technology
It aids and helps control airflow. You don’t just want air to come in and then get shoved out. You need to it to flow in certain paths to help cool specific components. If you push it in at certain points and then pull it out at others it creates specific flow paths. If all you do is exhaust or intake, the air moves to escape from all the case gaps instead of the desired in/out spots.
The intake and exhaust setup also reduces the strain on the fan motors, which reduces the chances of them failing.
Latest Answers