system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Can A Vacuum Cleaner Work In Space?

If It Can, Why or How So?
gpt
Technically yes.   In space its not a completely vacuum, its just effectively so.   Just like if there's one drop of water on a towel, that makes the towel not "dry",   there's a couple of gas molecules floating around.  

So the vacuum motor will spin and move gas molecules around. But there's not enough that the vacuum cleaner will be effective.