AIR PURIFIERS
How 3D printed air purifiers actually work
PC fans, HEPA or activated carbon filters, printed frames and the practical choices people ask about first.
Evo
A more evolved purifier body with a strong but simple shape. Evo gives airflow, maintenance and appearance the same priority, so the print feels polished without hiding the fan and filter logic.
Fan + filterBuilt around PC fans with HEPA or activated carbon filter options for a compact desk or shelf purifier.
Printable frameThe printed body holds the fan and filter in a clean shape that is easy to place at home.
MaintenanceFan replacement and filter access stay part of the design, so the purifier remains usable over time.
Related guides
AIR PURIFIERS
3D printed air purifier with a PC fan: what matters
Fan size, filter fit, air leaks and maintenance decide whether a printed purifier is useful or only a good-looking shell.
Similar designs
Roy
A quiet, USB-powered air purifier that just does its job. Cleaner room air from a printed object that actually looks like it belongs on the shelf — no humming appliance, no exposed electronics.
Max
The fastest River purifier to build. Snap the printed shell onto a standard PC fan, drop in the HEPA, plug into USB — your room is already cleaner.
Yomi
A flat disc you barely notice. Real airflow, quiet operation, and a soft printed silhouette that disappears into a shelf or a coffee table.
Eno
HEPA and activated carbon in one tall, calm object. The only River purifier that removes both particles and odors — for kitchens, bedrooms and any room that smells of yesterday.
Also from River Family
Ice air coolers
Yuki
A full-size ice-pack air cooler built from printed parts, a quiet USB fan and a frozen water pack. Freeze the pack overnight, place it inside, and Yuki sends a steady cooler stream across the desk with very low power use.
Water filters
Jem
A polypropylene tap water filter for activated carbon. The flower-like top opens for filling, the body attaches to standard taps, and the bottom grid holds carbon while water passes through. Joined G-code keeps the water path cleaner by reducing micro-stringing.