Disinfect the mask. How often should the mask be changed?

The video was reprinted from West China Hospital of Sichuan University

Guiding Unit:

Urban and Rural Community Development Governance Committee of CPC Chengdu Municipal Committee

Education, Culture and Health Bureau of Chengdu Hi-tech Zone

Trade Union of Chengdu Hi-tech Zone

Sponsor:

Chengdu Hi-tech Medical Association

Undertaker:

Chengdu Hi-tech Medical Association Nutrition Sports and Health Branch

General Medicine Branch of Chengdu Hi-tech Medical Association

Chengdu Hi-tech Medical Association Institute Sense Branch

Breast disease special committee of chengdu hi-tech medical association

Heart function committee of chengdu hi-tech medical association

Co-organizer:

Beijing Huayi Network Technology Co., Ltd

Chengdu Business Daily • Sichuan famous doctor

West China Hospital of Sichuan University

West China Shangjin Fen Hospital, Sichuan University

Institute of Public Health and Social Development, Sichuan University

Tianfu International Alliance for Nutrition Sports and Health Innovation

Chengdu Pension Welfare Association

Chengdu BOE Hospital

Sichuan Modern Hospital

Chengdu Huang Zai Military Hospital

Futurecome Technology Co., Ltd

Sichuan medical team