Video data from: Low-cost measurement of facemask efficacy for filtering expelled droplets during speech

Public

  • Mandates for mask use in public during the recent COVID-19 pandemic, worsened by global shortage of commercial supplies, have led to widespread use of homemade masks and mask alternatives. It is assumed that wearing such masks reduces the likelihood for an infected person to spread the disease, but many of these mask designs have not been tested in practice. We have applied a simple optical measurement method to evaluate the efficacy of masks to reduce the transmission of respiratory droplets during regular speech. We compare a variety of commonly available mask types and observe that some mask types approach the performance of standard surgical masks, while some mask alternatives, such as neck fleece or bandanas, offer very little protection. Our measurement setup is inexpensive and can be built and operated by non-experts, allowing for rapid evaluation of mask performance during speech, sneezing, or coughing. ... [Read More]

Total Size
334 files (26.6 GB)
Data Citation
  • Fischer, E., Fischer, M., Grass, D., Henrion, I., Warren, W., Westman, E. (2020). Video data files from: Low-cost measurement of facemask efficacy for filtering expelled droplets during speech. Duke Research Data Repository. V2 https://doi.org/10.7924/r4ww7dx6q
DOI
  • 10.7924/r4ww7dx6q
Publication Date
ARK
  • ark:/87924/r4ww7dx6q
Replaces
  • 10.7924/r4kp81n9j
Collection Dates
  • May 20, 2020
Type
Format
Related Materials
Provenance
  • Version 2 adds additional data for a further run of cotton masks; a fitted N95 mask; and comparisons among no mask, surgical mask, cotton mask, and bandana worn by several different speakers.
Funding Agency
  • Chan Zuckerberg Initiative
Grant Number
  • 2019-198099
Contact
Title
  • Video data from: Low-cost measurement of facemask efficacy for filtering expelled droplets during speech

Items

Versions

Version DOI Comment Publication Date
2 10.7924/r4ww7dx6q Version 2 adds additional data for a further run of cotton masks; a fitted N95 mask; and comparisons among no mask, surgical mask, cotton mask, and bandana worn by several different speakers. 2020-08-05
1 10.7924/r4kp81n9j 2020-06-17
This Dataset
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