
through the cryocooler
or through the VACUUM filter.
The Big Bang Theory Season 10, Episode 20

of virtual particles
in a VACUUM,
The Big Bang Theory Season 5, Episode 23

...and maybe once a week,
run a VACUUM through this place.
The Big Bang Theory Season 4, Episode 3

or VACUUM cleaner salesman,
or bootblack.
The Big Bang Theory Season 5, Episode 6

...of the quantum VACUUM has little
effect on the expansion of the universe.
The Big Bang Theory Season 4, Episode 7