... no noise 5.no polution Product DescriptionSeries ZLT Cooking Oil Filtration, oil purification, oil purifier, oil treatment, oil ... Features: 1 ZLT is composed of vacuum filtration system and pressure filtering system. Vacuum filtration system equips three grades filters, all ... is less than 1 micron. 2 ZLT vacuum filtration system adopts the vacuum vaporizing technology to remove water, odor, alcohol ...