The cleaner uses suction (6)
I believe the answer is:
vacuum
(Other definitions for vacuum that I've seen before include "Space empty of matter" , "Clean" , "Emptiness" , "Hoover" , "Space containing no matter" .)
I believe the answer is:
vacuum
(Other definitions for vacuum that I've seen before include "Space empty of matter" , "Clean" , "Emptiness" , "Hoover" , "Space containing no matter" .)