A bit ironic to me to print the case with plastic which'll just end up degrading into microplastics over time, creating a more toxic environment. Like a toothbrush made of sugar or a mop made of charcoal.

Kind of an edge case because the printing process itself is where the far greater known health risks lie. Honestly, I don't like the design because it's probably loud and expensive (for proper high static pressure fans) and doesn't have as much filter area as box fan-based DIY filters.

It's cute, but I'd prefer a double box fan and 4 or 5 filters 3D printed frame.

Wait till you find out what the filter is made out of