purifier
noun [ C ] uk/ˈpjʊə.rɪ.faɪ.ər/ us/ˈpjʊr.ə.faɪ.ɚ/
净化器;净化剂
a machine or a substance that removes harmful substances from something
a water purifier 净水器
an air purifier 空气净化器
In traditional medicine, certain herbs are used as blood purifiers. 在传统医学中，某些草药被用来净化血液。