The "ASIAN" Water Vapour Permeability Tester made of twelve brass bottles. It measures water vapours permeability of leather. The bottles have the nut of the circular opening. The bottles are mounted on the bottles holders which rotate at specified revolution per minute with the help of motor pulley belts. The axis of the bottles is parallel to the axle of the bottles holders. A fan mounted in front of the mouths of the bottles and consisting of three blades in planes that are inclined at 120º to one another. The planes of the blades pass through the prolongation of the axle of the wheel. A preset Digital timer is mounted for setting total no. of hours of instrument movement. All the components are chrome/ Zinc Plating Painting for corrosion resistance long life.