HabitableZone

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3d printing is amazing

I have a filament based 3d printer that can do surprisingly nice work, and Getting a SLA resin 3d printer that has 50 micron precision...

I am working on making a respirator mask of my own design that I hope will be orders of magnitude better than a cloth mask

It will use some cloth for filtration, but adds a layer of PM 2.5 filter and a HEPA CPAP machine filter...

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