The TQD-G1 is an air permeameter developed by Labthink Instruments Co., Ltd.. It determines air permeability of decorating accessories for cars. With this test, the physical characteristics of the accessories can be controlled to satisfy the needs of its applications. Not only it can be used in car accessories but also in other Elastic and Porous Polymer Materials, textiles, leather and paper. It is designed with dimensions of 502x334x298mm in lxwxh, to cater a specimen with a sizes of 52x52mm and 12-71mm. The permeameter has a pressure test range of 0 kPa up to 1 KPa and a flux test range of 0 L/h up to 1800 L/h.