Filter access, fan access and maintenance in a printed air purifier
A purifier is not just a sculpture. The fan, filter and airflow path need to stay understandable after the print is finished.

Dome's plant-pot variant. The back dome ends in a pointed shaft that sticks straight into the soil of a plant pot; the fan blows air upward through the leaves, improving airflow around the plant while doing light filtration. Same dome geometry, same mid-print pause to embed the fan.
A purifier is not just a sculpture. The fan, filter and airflow path need to stay understandable after the print is finished.

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.

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.

A flat disc you barely notice. Real airflow, quiet operation, and a soft printed silhouette that disappears into a shelf or a coffee table.

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.



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.

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.