The parts can be printed from most any material. I like Ultimaker polycarbonate because it makes very strong, not brittle parts. The fan is any one of Sanyo's 40x40x28mm axial fans. If you use the highest flow 5V version (9GA0405P6H001), it can be powered by a USB adapter or battery. There are higher flow options but they require 12 or 24 volts. For the power cord, I used an old phone charging cable that no longer worked because the phone connector was bad. I used #4-40 heat set inserts and #4-40x1.5 inch screws to hold the fan/filter together and #4x3/8 inch flat head self tapping screws to attach the manifold to the stand. An M3 screw is about the same size as a #4 screw. 3/4 inch ID tubing is used to direct the air. There is a filter installer which can be used to force the pleat into the filter media before using a rubber band to hold it to the filter holder. The filter holder is broken into 2 parts to allow easier molding. I used the tree support option in Cura to support the cross bars.