One of the first things I do when entering Japan (2 - 3 times a year) I stop in a 7&i and purchase a second pack of surgical masks. The primary reason is to have one on hand if required for business or social reasons (or a breakout of the Zombie Apocalypse) On most trips I hand off the unopened pack to someone at the United counter for their use.
Last edited by Dublin_rfk; Jan 26, 2020 at 6:57 am
Reason: Additional details