purifier

UK: /ˈpjʊərɪˌfaɪə/

Collins Concise English Dictionary © HarperCollins Publishers::

purifier / ˈpjʊərɪˌfaɪə/ noun

1. a device or substance that frees something of extraneous, contaminating, or debasing matter

WordReference Random House Learner's Dictionary of American English © 2025

pu•ri•fy /ˈpyʊrəˌfaɪ/   v. [~ + object] , -fied, -fy•ing. 

1. to make pure; free from anything that pollutes or contaminates.
2. to free from extra or objectionable elements.

pu•ri•fi•ca•tion /ˌpyʊrəfɪˈkeɪʃən/  n. [uncountable]
pu•ri•fi•er, n. [countable] See -pur-.

WordReference Random House Unabridged Dictionary of American English © 2025

pu•ri•fy  (pyŏŏr′ə fī′), v., -fied, -fy•ing. 
v.t. 

1. to make pure; free from anything that debases, pollutes, adulterates, or contaminates:
   to purify metals.
2. to free from foreign, extraneous, or objectionable elements:
   to purify a language.
3. to free from guilt or evil.
4. to clear or purge (usually fol. by of or from).
5. Religion to make clean for ceremonial or ritual use.

v.i. 

6. to become pure.

• Latin pūrificāre. See pure, -ify
• Middle French purifier
• Middle English purifien 1250–1300

pu′ri•fi•ca′tion, n. 
pu•rif•i•ca•to•ry  (pyŏŏ rif′i kə tôr′ē, -tōr′ē), adj.  pu′ri•fi′er, n.