한국소비자원 2020-06-16T01:36:11Z 2020-06-16T01:36:11Z 2017-05-31 2017-05-31 1002053190 https://www.kca.go.kr/eng/sub.do?menukey=6007&mode=view&no=1002053190 https://www.kca.go.kr/repo/handle/2015.oak/6358 한국소비자원 http://creativecommons.org/licenses/by-nc-nd/2.0/kr/ Consumers need to check certification when purchasing portable fans run by a lithium battery news