Clarklake, MI-based Airmaster, a manufacturer of air circulation and ventilation fan solutions for industrial and commercial use, recently announced the promotion of Gregory W. Helbling to vice president of sales and marketing, as well as the hiring of Keith Simon as senior product development manager and Jerry Vojtush as inside sales manager. In his new position, Helbling is responsible for leading sales strategy across all sales channels, including industrial, electrical and HVAC. He has more than 35 years of industry experience. Simon’s responsibilities include leveraging innovative products from Maico, Airmaster’s parent company, in a way that is suitable for the North American market, and providing innovation to products for commercial and industrial applications. Vojtush is responsible for managing customer relations and improving the sales volume for Airmaster’s full line of circulation, ventilation and heating products.