HEPA Filter 80mm Fan

thingiverse

Here's a design for a HEPA Filter that works perfectly with an 80mm fan. This innovative design uses standard Roomba 800/900 HEPA filters, which are very affordable to purchase. It also includes ducting for an 80mm fan and electronics housing in its structure. For added control, there's even a version with a cutout specifically designed for a PWM controller like the Noctua NA-FC1 4-Pin PWM Fan Controller. When printing this design, only the HEPA Cartridge or box requires support. The best results are achieved when printed in PETG at a layer height of .2mm. However, your mileage may vary based on your specific printer settings and materials used.