Answer:

H

E

P

A

We have spotted HEPA (4 Letters) a total of 11 times in our database. Below you may see the clues associated with HEPA and also when and where was it last seen:

Referring crossword puzzle clues

• Purifying filter acronym
• Big acronym in purifying filters
• __ filter
• Air filter acronym

Usage among publishers:

• LA Times: Nov 23, 2024
• Wall Street Journal: Nov 19, 2024
• New York Times: May 21, 2024
• New York Times: May 3, 2024
• Universal: Feb 23, 2024
• LA Times: Feb 21, 2024
• New York Times: Dec 31, 2023
• LA Times: Dec 29, 2023
• LA Times: Apr 16, 2023
• Newsday: Aug 14, 2022