Multi-branch static mixers

A static mixer, comprising:

• a static mixer housing, comprising,
• an inlet port for receiving a fluid,
• a primary channel in fluid communication with the inlet port,
• a raised rib along a perimeter of the primary channel,
• a first flow splitter for splitting the fluid into a first stream and a second stream within a first secondary channel and a second secondary channel, respectively,
• a second flow splitter for splitting the first stream into a third stream and a fourth stream within a first tertiary channel and a second tertiary channel, respectively, and a third flow splitter for splitting the second stream into a fifth stream and a sixth stream within a tertiary channel and a fourth tertiary channel, respectively,
• a first T-style junction for rejoining and mixing the third stream and the fourth stream within a first terminal channel,
• a second T-style junction for rejoining and mixing the fifth stream and the sixth stream within a second terminal channel, and
• a third T-style junction for rejoining and mixing the streams;
• and
• a plastic film, the plastic film sealed to the raised rib, forming the static mixer capable of mixing the fluid.