If you have no other options available at the moment, then a DIY 3D printed mask is something that prevents droplet transmission from infected individuals substantially better than nothing.
準備
Filters
1 SMS( Spunbond + Meltblown + Spunbond Nonwovens）
2 Meltblown
3 Adhesive-bonded fabric or gauze
Pile them up in order and seal
ノート: If the abovementioned materials are unattainable, you can use Gauze, fiber nonwovens, food cling film, PE bags or multi-layer kitchen towels alternatively
3D Printer and Filament
Geekbuying offers free local delivery to all EU countries and the USA on the Tronxy 3D Printers listed below：
TRONXY XY-2 Pro (255 x 255mm x 260mm)
TRONXY X5SA Pro ARM 32 Bit Mainboard (330*330*400んん)
TRONXY D01 Industrial Linear Guide ( 2220*220*220んん)
Print Download
STL Files for DIY Maks holder and strip
COVID-19+MASK+(Easy-to-print,+no+support,+filter+required)
ソース: Thingiverse
警告
This model has not been approved by any regulatory agency. Use it at your own risk, and only as a last resort, if you do not have any other homologated protection. The recommended measures to protect yourself from infection with the coronavirus COVID-19 are the following:
- Stay home and avoid contact with other people
- Avoid touching your face with your hands
- Wash your hands very often
