May 31, 2026 Daily / 18D / 4 letters
Puzzle clues NYT Crossword
Purifying filter acronym NYT Crossword Clue
Use the hint first, then reveal the answer only if you need it.
Hint
The clue points toward a shortened form. Expect a 4-letter compact entry and watch for initials or common abbreviations.
How to solve it
Read the clue type first
For the clue: Purifying filter acronym, first identify whether the wording is direct, referential, abbreviated, or playful. This one is best treated as a abbreviation.
- The clue points toward a shortened form. Expect a 4-letter compact entry and watch for initials or common abbreviations.
- The answer slot has 4 letters, which narrows the clue to a specific grid shape.
- This clue appears at 18D in the NYT Crossword, so check the Across crossings for confirmation.
Reveal Answer Hide Answer
HEPA
Explanation
Why This Answer Fits
HEPA is the 4-letter answer for the clue: Purifying filter acronym. The clue's abbreviation cue explains why the answer is entered in a shortened crossword form. In this NYT Crossword, it appears at 18D, so the crossing entries help verify the exact spelling.
- Grid entry: HEPA in the grid.
- Answer pattern: _ _ _ _.
- Clue type: Abbreviation.
- HEPA has 4 letters, matching the required slot for 18D.
Answer history
Other NYT Crossword Clues Using HEPA
We have not seen many previous NYT clues for this answer yet.
View all HEPA clues Position 18D
Answer length 4
Puzzle type Daily
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History
Clue History
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