https://www.selleckchem.com/products/azd9291.html
Results Baseline particle counts without a filter (background) were 2,935 ± 555 (SD) cm-3, while the N95 (1348 ± 92 cm-3) and N99 mask with elastomeric lining (279 ± 164 cm-3; p less then 0.0001) exhibit lower counts due to filtration. Conclusion The filtration efficiency of the N95 (54.1%) and N99 (90.5%) masks were lower than the filtration efficiency rating. N99 masks with elastomeric lining exhibit greater filtration efficiency than N95 masks without elastomeric lining and may be preferred to contain the spread of SARS-CoV-2 infecti
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