For 100g, 200g active carbon and 300g, when tested, reducing VOC substances in a laboratory amount photocopying found that VOC compounds decrease the amount 82.14, 62.09 and 94.44 percent, respectively.
For powdered activated carbon 100g, 200g and 300g were tested for volume, reduce VOC substances found in document volume, VOC substances fell 82.14, 62.09 and 94.44 percent respectively.
For activated carbon, and 100g 200g 300g when tested to reduce the volume of edema of VOC in the copy room, it was found that the ปริมาน substance VOC decreased, and 82.14 62.09 94.44 percent. Respectively.