Noctua today introduced its new NA-IS1 intake side spacer frames for suction or "pull" type applications where fans draw air through obstacles such as grills, perforated plates, mesh panels, filters or radiators. By offsetting the fan from the obstacle, the NA-IS1 can significantly reduce influx turbulences and thereby help to improve both acoustics and performance. In addition, Noctua also introduced the NA-SAVG2 anti-vibration gasket set for using 140 mm fans on water cooling radiators or other applications that benefit from a tighter seal with the fan.

"Intake applications where fans draw air through obstacles such as grills or perforated panels are notoriously challenging both from an aerodynamic and from an acoustic point of view due to the massive turbulences that are caused by these objects", explains Roland Mossig (Noctua CEO). "These influx turbulences can have a significant impact on fan acoustics and performance, so we have created the NA-IS1 spacer frames that give customers a simple yet highly effective solution to reduce these turbulences and thereby make fans more efficient in suction type applications."