Effectiveness of Face Mask or Respirator Use in Indoor Public

This report describes face mask or respirator effectiveness in helping protect against COVID-19 infection.

Effect of Wearing Face Masks on the Carbon Dioxide Concentration in the Breathing Zone - Aerosol and Air Quality Research

Guidance on Face Coverings Office of Environmental Health and Safety

Protective face mask: an effective weapon against SARS-CoV-2 with controlled environmental pollution

Cloth masks may not be as effective against omicron

Physical distancing, face masks, and eye protection to prevent person-to-person transmission of SARS-CoV-2 and COVID-19: a systematic review and meta-analysis - The Lancet

Cloth Face Masks Could Get A Boost From A Nylon Stocking Layer, Study Finds : Goats and Soda : NPR

The face behind the Covid-19 mask — A comprehensive review - ScienceDirect

Respirator - Wikipedia

Time to upgrade from cloth and surgical masks to respirators? Your questions answered

Protective Face Masks: Current Status and Future Trends

Will one-way masking protect you from COVID in public spaces? : Goats and Soda : NPR

What doctors wish patients knew about wearing N95 masks