Build a Sustainable Refillable Active Coal Filter
Posted on 2022-09-20— 3D Printing, Common
I show how I built a refillable replacement for the Philips FY3432 active coal filter using 3D‑printed PLA parts, mesh, M3 insets and epoxy. If you want a lower‑waste workshop air filter and practical assembly steps, read the full guide — I cover materials, print files and tips.