Labmate Fabric Air Permeability Tester is used for fast, simple and accurate determination of the air permeability of all kinds of flat materials. It is a fully automated instrument controlled by a single chip microcomputer with a measurement range of 0 – 200 Pa/cm and a pressure difference range of 0 – 2 KPa. Air Flow 8 L/min (mask test) 0 – 100 L/min (fabric test) Measuring Area 5 cm2, cm2, 10cm2 (selectable).