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Big acronym in purifying filters NYT Crossword Clue

Across clue · from the January 31, 2025 puzzle

Stuck on “Big acronym in purifying filters” from the New York Times Crossword? Here is the verified answer:

Answer
HEPA
4 letters · Across · last seen January 31, 2025

All appearances of this clue

NYT Crossword April 25 2026 HEPA NYT Crossword August 2 2025 HEPA NYT Crossword January 31 2025 HEPA

More clues from the January 31, 2025 puzzle

1A Many job fair attendees: Abbr. 3 1D Insensitive to human feeling 5 2D Air play? 10 3D Public relations pro, informally 10 4D Tried a bit of 6 4A "We're done, folks!" 10 5D "The most engaging cowardice," per Robert Frost 5 6D Not much hair cream 4 7D It goes bald over time 4 8D "Deal with it!" 7 9D Select 7 10D Stable call 6