Si loo fududeeyo beddelka isticmaale ee filtarrada, Shirkadda Guohao waxay nashqadaysay qaab beddelaad degdeg ah. Isticmaalayaashu waxay si fudud u dhammaystiri karaan beddelka filtarrada leh hawlgallo fudud, badbaadinta waqti iyo tamar qiimo leh.