You can contact the local Red Cross. Since 14, Tianjin Red Cross Society has provided free first aid training for local citizens, but you must make an appointment in advance. In addition, if you want to get the certificate of primary first aid, it is the same to contact them, but there is a charge.

In addition, there is an American Heart Association Cardiovascular Emergency Training Center in the General Hospital of Tianjin Medical University, which can obtain an international certificate. You can also contact there for information.