Probably not. If it were an airlock, they'd be crazy to not label it. [And thus far, she hasn't seen anything that illogical yet.

And hopefully she won't.] But doors like this, on a ship like this, are typically airtight just in case there's a hull breach somewhere. It means that you only ever lose air from the place it was damaged.

[Sheryl reaches up to pluck a hairpin from above her ear.] Do you mind if I try something before you get back to punching solid steel?