The English version of Good Day KF94 Mask was delivered to the Toronto Blue Jays, a major league baseball team in the United States, where Korean pitcher Ryu Hyun-jin is playing. 

The American Professional Baseball Major League (MLB), which had been postponed for nearly four months due to the COVID virus, opened on July 23, and at the request of the Toronto club, Good Day KF94 mask will be used by the baseball players.