资料来源 : pyDict

清洁者;精制者

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Purifier \Pu"ri*fi`er\, n.
   One who, or that which, purifies or cleanses; a cleanser; a
   refiner.

资料来源 : WordNet®

purifier
     n : an apparatus for removing impurities