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cloth mask has been used in previous epidemic. (image source: Dato VM & et al, 2006) mask that has been used before.

version: 2020-04-v01

  1. to make home made cloth mask for own use

  2. please read specification

  3. The design and making process is illustrated in this leaflet,

  4. examples:

  5. Please contribute your thoughts, photos of masks you made and ideas via github develoopment.

  6. Trials so far

  • with four layers of T-shirt fabric photo - with four layers of T-shirt fabric
  • with three layers of T-shirt fabric photo - with three layers of T-shirt fabric
  • with two layers of T-shirt fabric but pocket for additional cover (kitchen tissue, etc) photo- with two layers of T-shirt fabric but with pocket

references:

  • Dato VM, Hostler D, Hahn ME, 2006 Jun. Simple respiratory mask [letter]. Emerg Infect Dis [serial on the Internet].
  • Oberg T, Brosseau LM. Surgical mask filter and fit performance. Am J Infect Control. 2008 May;36(4):276-82. doi: 10.1016/j.ajic.2007.07.008. PubMed PMID: 18455048.
  • Samy Rengasamy, Benjamin Eimer, Ronald E. Shaffer, 2010. Simple Respiratory Protection—Evaluation of the Filtration Performance of Cloth Masks and Common Fabric Materials Against 20–1000 nm Size Particles The Annals of Occupational Hygiene, Volume 54, Issue 7, October 2010, Pages 789–798, doi.org
  • cdc guidance: www.cdc.gov
  • Ma & Shutler, Mar 2020. How to Sew a Face Mask - The New York Times, www.nytimes.com.