Xenex Disinfection Services has announced it has received $38 million in funding.

Xenex, based in San Antonio, is the developer of a pulsed xenon full spectrum UV room disinfection system for use in healthcare facilities.

The funding round was led by Essex Woodlands (EW), a healthcare PE firm based in Palo Alto, Calif. EW seeks minority or majority investments in private and public companies with revenues ranging from $20 million to $200 million that are EBITDA-positive or soon to be positive. Typical investment range from $20 million to $80million in equity.

The financing included new participation from Piper Jaffray Merchant Banking and continued investment from Malin Corp. and Tectonic Ventures.

Xenex indicated the funding would be used to support sales force growth, product development, scientific research and international expansion.