Organization: Public Health Agency of Canada
Year: 2022
Month: March
Request Number: A-2021-000048
Request Summary: Irrefutable evidence and supporting documentation that procedure and surgical mask-use by healthy individuals in public establishments is justified, safe & efficient at being a preventative intervention for SARS-CoV-2 when the Most Penetrating Partical Size (MPPS) filtration capacity, as per the manufacturer and National Institute for Occupational Safety and Health (NIOSH) standards, are too large to stop a virus particulate from penetrating the mask. A Confirmation that the Public Health Agency of Canada does not do their own testing of mask safety and efficacy and relies on NIOSH standards.
Disposition: All disclosed
Number of pages: 21