"Okay. Like I said, Sky. Air spirit."

She grins, and taps his chestplate (there's a faint shushing noise instead of the expected rapping).

"This thing supposed to do anything besides make your life difficult? Since I'm betting the main reason people build airtight seals back where I'm from isn't a problem for you."

That being: air spirits can't spy on you if they can't get through your walls.

Somehow she doubts he'd have much of a problem with her staring at him in the shower even if there were spirits in his home 'verse.