3D printer air filter

UPDATE:
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Added lateral support to install inside Platsa cabinet.

After a few weeks I decided to disconnect the filter because I was feeling more the smell of ABS with the filter then without it.
But now I moved the printer to a Platsa cabinet, and I decided I wanted to use it again, but without extracting the air out of the enclosure. To use what I already manufactured, I created a simple bracket to fix it to the inner wall of the Platsa, taking advantage of the existing holes inside the cabinet.

It uses 2 M4x16 countersunk screws. M4x12 will also do the job.

This is my air filter for the printer enclosure.

It consists of only 4 very simple parts, and with the objective of being as low profile as possible.

Created in SOLIDWORKS 2019.

The HEPA enclosure has some side holes to use small screws to hold the filter in place. But the enclosure is so snug fit, I ended up not using the side screws.

It uses a regular 120x120mm 5V (USB) fan. But if you fe