After the "Micro Cooling Fan" of wind & pressure is the main factor determining the thermal performance of the fan shape specifications often settle down, focus on the characteristics of the fan air flow & pressure requirement is by no means the fan speed, usually people will misunderstand this emphasis start using A manufacturer of fan speed for 2400RPM, as long as B is also 2400RPM fan manufacturers will be able to do so completely wrong.
"Micro Cooling Fan" air flow: air flow is sent out every minute or wind and the intake air volume [unit M3 / min (ft3 / min), the number of cubic meters per minute (cfm)].
"Micro Cooling Fan" pressure: pressure is the pressure when the fan blows air needed to overcome the resistance generated is divided into static and dynamic pressure. Static pressure refers to a direction parallel to the gas flow measured pressure, dynamic pressure is converted into kinetic energy of the gas flow desired process pressure [unit: mm / H2O (inch / H2O), the number of water column pressure mm (inches)].