關於「CDC mask」標籤,搜尋引擎有相關的訊息討論:
Use of Masks to Control the Spread of SARS-CoV-2 - CDCLyu W, Wehby GL. Community use of face masks and COVID-19: evidence from a natural experiment of state mandates in the US. Health Aff (Millwood). 2020; ...Approved Particulate Filtering Facepiece Respirators | NPPTL | NIOSH.