Jackson, Mich.-based Airmaster, a manufacturer of air circulation and ventilation fan solutions, announced Robert Zellhoefer as its director of HVAC sales.Jackson, Mich.-based Airmaster, a manufacturer of air circulation and ventilation fan solutions, announced Robert Zellhoefer as its director of HVAC sales. In his new position, Zellhoefer will be responsible for acquiring, developing and retaining key regional and national accounts in residential, commercial, industrial and institutional HVAC markets in North America. Zellhoefer has more than 36 years of industry experience.People in the News read more