David Chiles, president of VOC-abatement systems maker Pro-Environmental, passed away April 9, following a long battle with cancer. He was 52.

Chiles served as president of the Rancho Cucamonga, Calif.-based company since its inception on September 11, 2001. According to Pro-Environmental chairman David M. Parker, in the short time since PEI’s founding, under Chiles’ leadership, the company has grown into a respected leader in air pollution abatement equipment to many industries.