Starting today (13th), in Seoul during busy times such as commuting time, you must wear a mask to get on the subway.
Seoul Metropolitan Government has decided to restrict entry from the ticket gates to passengers who are not wearing masks when it is difficult to move inside the train because the subway congestion is more than 150%.
Passengers who do not bring a mask can buy dental masks at historical convenience stores and vending machines.
Starting today, I can't ride without a mask in case of Seoul subway congestion
2020-05-12T20:12:23.843Z
Starting today, in Seoul during busy times, such as during commute, you must wear a mask to get on the subway. Seoul Metropolitan Government has decided to restrict entry from the ticket gates to passengers who are not wearing masks when it is difficult to move inside the train because the subway congestion is more than 150%.
Source: sbskr