Personally, i don't vape when on my computer anymore.
I had a problem with my tower this year. Took it to the shop and it looked like it had a little moisture in it.
He asked me if i vaped near the tower and i said i did. (for about 3 years)
The tech said he's seen it many times. It's the moisture from the vape getting sucked in through the fans.
It ruined my graphics card which actually i was going to upgrade anyway.
He cleaned the moisture out and i installed a new card a week later.
I know some people will call bullshit on this but i have to take him at his word because there is no other reason for the moisture inside.