Air porosity is an important performance of clothing material to consider the comfortable clothing.
Air porosity is estimated by a calculation formula. A suitable experiment method has not been found. Now that we develope an easy measurement method to be able to determine the correct air porosity. The method consists of two ways by means of measuring cylinder and syringe.
Both methods have a good sense of sigth and are the effective teaching materials, so that they are able to be applied to an actual teaching load. Particularly, the method using measuring cylinder is very accurate and easy to operate.
