Further reading/resources:
- CDC's Mask Guide
- Badger Seal (Mask Fitter, Mask Sealer, Mask Brace)
- Strategies to minimize SARS-CoV-2 transmission in classroom settings: Combined impacts of ventilation and mask effective filtration efficiency (medRxiv)
- Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure (CDC)