Open Source N95 Face Mask Industry Standards

Evaluations

• List of surgical masks - [1]
• Evaluation of Montana Mask - TCO2 and SpO2 PCO2

List

• Global Vent & PPE Collaborators - [2]. File:Ppepeople.ods

Open Source

• Project Carola. Open source hardware project - production of filter material as well? [3]
• Billings Clinic - [4]
• Sunlu - [5] - Jonathan like s it - [6]
• Nanohack by Copper 3D
• Cults 3D download - [7]
• Iafactoria - [8]

Proprietary

• Virimask

Evaluation

• Given all the choices - what is the best one to go with?
• Best Candidates
  • https://www.cnn.com/2020/03/23/us/coronavirus-3d-printed-medical-supplies-trnd/index.html
  • https://longliveyoursmile.com/3d-printable-mask-for-covid-19/

Production

• N95 masks, called that because they filter out 95 percent of particles smaller than .3 microns, represent a tricky production problem. They must sit snug enough to create a seal and fit to the individual’s face. The masks consist of two layers of cloth with a piece of melt-blown polypropylene in between. The polypropylene is extruded at extremely small diameters, then settles and cools in a random pattern. The fibers are electrically charged, attracting particles while allowing air to pass through. - [9]

Links

• MERV Ratings - Filters - [10]
• P-Ratings - P3 - [11].
  • P3 is more effective than N95 - [12]
• Open Source N95 Face Mask