Author: Eugenia O'Kelly; Sophia Pirog; James Ward; P John Clarkson
Title: Informing Homemade Emergency Facemask Design: The Ability of Common Fabrics to Filter Ultrafine Particles Document date: 2020_4_17
ID: 51thatw6_18
Snippet: For each material or material combination, ten sets of readings were collected. Readings were collected using two P-Trak Ultrafine Particle Counters, Model 8525. Each reading was collected as a 10-second average of ultrafine air particle concentrations......
Document: For each material or material combination, ten sets of readings were collected. Readings were collected using two P-Trak Ultrafine Particle Counters, Model 8525. Each reading was collected as a 10-second average of ultrafine air particle concentrations.
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