corona virus 3d print  - mask and filter for less than $ 15

  1. make your own mask 
    1. 3d print
      1. fda allows for corona virus only
      2. see video
      3. made by doctor
      4. open source 
      5. https://kicks1055.com/one-connecticut-doctor-is-saving-lives-with-3d-printed-face-masks/ 

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