Eng3 is a privately held corporation with their patented NanoVi technology registered with the FDA as a Class I medical device. Eng3 has sales representatives throughout the U.S. and distribution partners to manage international sales.

NanoVi™ devices represent a new era of bio-identical signaling technology for stimulating oxidative response. Since 2003 Eng3 has been selling products referred to as activated air devices that also address oxidative stress damage. The new NanoVi™ products were announced in late 2010, replacing previous activated air devices