Basics

A Device that introduces air into a faucet's water stream
Reduces water use, and reduces "flatness" of water for drinking
Very simple design, essentially mesh
Some lab designs allow the airator to be used as a low level suction source/vacuum pump, although this can be a HUGE WASTE of WATER, so a proper vacuum pump is reccomended is available
Make/Find a 3d Printable file? (Machining or even hole drilling a metal cap would work as well

Off the Shelf Products