- We came a long way in learning about … mostly filters.
- For a good 3D design, there are some examples already available. We selected some of them based on the needs we saw according to the available techniques and resources in our local context and research. Here is what we selected:
- masks composed of at least 2 compartments (facial and filter).
- big enough to cover enough of the face without leakage
- printable in flexible material so that it fits to the face and filter in hard material
- opening must be big enough to make it breathable.