Nothing strange about that. It purifies the air.
3 seconds sound clip from the The Black Hole (1979) movie soundboard.
You can hear this line at 00:52:29.768 in the Blu-ray version of the movie.
Quote context
[...]
- Doctor Reinhardt is walking a tightrope between genius and insanity.
- Well, whatever he is, he's an out-and-out liar.
- That tiny little one-man garden of his is big enough to feed an army.
- Nothing strange about that. It purifies the air.
- Tell them about the funeral. A robot funeral. It was almost human.
- And we only have Reinhardt's word for what happened to his crew.
- All I know is that that robot gardener was almost human too. Ha! He even walked with a limp.
[...]