claim: effectiveness of facemasks to increase exposure hazards for airborne infections among general populations
evidence_1: validation and application of models to predict facemask influenza contamination in healthcare settings.", "aerosol-scavenging isolation barrier mitigates exposure risk during endonasal procedures in coronavirus-2019.", "in this work, two manikins labelled as 'source' and 'susceptible' were used to measure the protection provided by facemasks under various emission scenarios.", "the source was modified to generate polydisperse ultrafine particles, whereas the susceptible was modified to mimic a realistic breathing pattern.", 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  "facemasks for the prevention of infection in healthcare and community settings.")