Jim Proser

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Canadian Mask Study Finds Ventilation Works Better

Canadian mannequin study finds mask filtration efficiencies of:
 
Cloth: 10%
Blue disposable: 12%
Fitted KN95: 46%
Fitted R95: 60%
KN95 with 3mm gaps: 3%
 
Even modest ventilation (2 air changes per hour) outperforms best mask.
Experimental investigation of indoor aerosol dispersion and accumulation in the context of COVID-…
The ongoing COVID-19 pandemic has highlighted the importance of aerosol dispersion in disease transmission in indoor environments. The present study experimentally investigates the dispersion and b
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