Review of HEPA mask by Dr. Jiangmei Wu

Last modified by Victor Zhang on 00:17, 22/07/2020

During construction
- Because of the thickness of HEPA bag
  - Staples could miss half the clip
  - When cutting, the layer shift could result in, needs good scissor for it
- HEPA bag doesn't react well with scoring with patter as described in document
  - So will need some skill to fold it correctly
  - But geometrically the arcs fit perfectly
Overall, it's a great design and among the DIY masks, this is among the few design that actually has protection
Could design a helper structure to speed up the construction