Zzzap can survive in space

He looked up at the sky and tried to spot Barry’s gleaming form between the stars. “You’re out in space?”
“Technically, yeah,” Barry said over the speaker, “but I was joking about the satellite. I’m right about at the Kármán Line.”
“Are you … okay with that?”
“Well, it’s not like I need to breathe or anything. And this way we’ve got the ozone layer between me and Earth, just in case.”
“Just in case what?”
“Hey, I’m letting off a lot of energy here. Some of it’s going to slip into the more dangerous wavelengths. Can’t be helped.”

Excerpt From Ex-Patriots, pg 14
Peter Clines
https://books.apple.com/us/book/ex-patriots/id585738393