The board of directors of Quest Technologies has elected Mark Mazzo vice president and general manager of the company's Rochester Technical Center. He joined Quest in 1999 when the company acquired Metrosonics, where he had been director of engineering since 1998. The board has also elected Cliff Wolcott vice president of marketing. He also joined Quest at the time of Metrosonics' acquisition and had served as that company's director of sales and marketing. He has over 20 years of experience in instrumentation sales, service, rental and marketing in the occupational safety and health field.

For additional information, call (800) 245-0779 or (262) 567- 9157. Or visit http://www.quest- technologies.com.