4 papers
Size-dependent mass absorption cross-section of soot particles from various sources
Joel C. Corbin, Tyler J. Johnson, Fengshan Liu +4
The mass absorption cross-section (MAC) of combustion-generated soot is used in pollution and emissions measurements to quantify the mass concentration of soot and in atmospheric m…
Filtration and breathability of nonwoven fabrics used in washable masks
Thomas W. Bement, Ania Mitros, Rebecca Lau +6
This study explores nonwoven and woven fabrics to improve upon the performance of the widespread all-cotton mask, and examines the effect of layering, machine washing and drying on…
Comparison of measurement systems for assessing number- and mass-based particle filtration efficiency
Timothy A. Sipkens, Joel C. Corbin, Triantafillos Koukoulas +8
The particle filtration efficiency (PFE) of a respirator or face mask is one of its key properties. While the physics of particle filtration results in the PFE being size-dependent…
Properties of materials considered for improvised masks
Steven. N. Rogak, Timothy A. Sipkens, Mang Guan +3
During a pandemic in which aerosol and droplet transmission is possible, the demand for masks that meet medical or workplace standards can prevent most individuals or organizations…