Fan unit
thingiverse
The parts needed for the Purely Anti-Pollution Air Mask's fan unit include the Xiaomi Purely Anti-Pollution Air Mask itself, a 3010 5-12v cooling fan, a micro USB to DIP PCB socket adapter converter, an MT3608 step-up boost DC-to-DC converter module if using a 12v fan, and M2 screws and nuts for assembly.
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