Enter a clue or pattern or both:
The Clue
Antipollution devices (9 letter answer)
The Answer
SCRUBBERS
Tags
Notes
The answer SCRUBBERS is so rare that it appears less than once every 2500 puzzles.
Definition
SCRUBBER as a noun:
1. a worker who uses a scrub brush to clean a surface (usually a floor or deck)
2. (scrub brush, scrubbing brush, scrubber) = a brush with short stiff bristles for heavy cleaning
3. a purifier that removes impurities from a gas