I might not know what airflow and air pressure mean (I know what it means...), but this one has almost double the air pressure of the fan that my CPU cooler had and slightly more airflow. So logically, I expected better cooling performance. We went from 31°C to 50°C. Yeah... I don't know... These fans are quiet, but if they don't provide anything in terms of cooling... What can I say... They are nice and quiet, but they don't fit in a case... 120mm diameter doesn't fit in most builds. It's not suitable for a CPU cooler... So... I guess it's a waste of money.