Box drain moisture is intended to build a device that reduces the moisture content of one another. When an emergency, such as rain, outside air with high humidity. Or force majeure. The humidity is increased with the object and to find the work efficiency of the air vent moisture. The study and development of the model and the design of the 1 helps drain moisture with vital supplies is about a hot hair dryer, and the test efficiency by measuring the moisture content and temperature inside the box. Outside the box with a hygrometer, the two piece weighed the cloth fabric one into the อีกผืน take them outside the box left 30 minutes. Moisture and temperature inside the box, outside the box, the weigh of a damp cloth to both. The duration of the trial from March to may 2559.The results showed that the difference of relative humidity. The temperature and the weight of a damp cloth after the experiments using the extractor is greater than the value of the different humidity humidity The temperature and weight of a damp cloth from the experiments at room temperature.
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