At Ceromaze, the flagship product was an automatically filtered respiratory device. This would make use of a series of N95 filters, particulate precipitator, and UV-C sterilization. In development, there were several challenges: mechanical, biological, and electrical.
Mechanically, the device was relatively simple. A series of tubing would connect discrete devices each contributing a pressure drop. A lot of time was spent sourcing and validating the appropriate fan/blower that could supply sufficient pressure and flow. Various python codes and excel sheets were created to ensure the design would work and were subsequently compared to experimental results.
Pictured below are some of the housings and experimental configurations I had designed throughout this process.
Biologically, the system needed a high efficacy in neutralizing pathogens that would get past the N95 filter media. This was done using a patented precipitation device that would collect harmful contaminants onto a series of plates. As they rested, the surfaces would be subjected to UV-C light, neutralizing the pathogenic threat. These two subsystems, precipitation and sterilization, needed a hardwired electrical supply with separate voltages and currents. I wrote the specifications for these systems, designed the components, prototyped the electronics, and would have been managing a subcontractor to design the final integrated circuit.
Though not a particularly well-composed image, some of my work can be seen below.
