Donaldson Announces Officer Retirement

Donaldson Company, Inc. (NYSE:DCI), a leading worldwide manufacturer of filtration systems, announced today that Peggy A. Herrmann, Vice President, Disk Drive and Microelectronics, will retire January 23, 2015.

Over the span of her 25-year career at Donaldson, Peggy has been a key contributor to the growth of the Company. Peggy’s roles included Manager of Business Analysis; Manager of Engine Air Products; Market Development Manager; General Manager of Engine Aftermarket; and Vice President, Disk Drive and Microelectronics.

“I want to thank Peggy for her strong leadership and many significant contributions to our Company,” said Bill Cook, Chairman, President, and CEO. “When Peggy started with our Company, our total sales were less than $300 million. As a result of her leadership roles in both our Engine Aftermarket and Disk Drive businesses, she was a key player in building our Company to the $2.5 billion size we are today. Peggy has also helped to globalize our Company with her strong focus on our international opportunities. Our international sales now represent 58% of our total sales, and Peggy contributed to this significant growth and diversification. Peggy is a valuable member of my senior team as she is renowned for her drive, relentless focus on the delivery of her financial results, her strong commitment to people and their development, and her passion for local community involvement. Peggy has built a strong organization that is well positioned to continue to execute our strategy and deliver our long-term sales growth and financial objectives.”

About Donaldson Company

Donaldson is a leading worldwide provider of filtration systems that improve people’s lives, enhance our Customers’ equipment performance, and protect our environment. We are technology-driven and committed to satisfying our Customers’ needs for filtration solutions through innovative research and development, application expertise, and global presence. Our 12,700 employees contribute to our success by supporting our Customers at our more than 140 sales, manufacturing, and distribution locations around the world.

Donaldson is a member of the S&P MidCap 400 and Russell 1000 indices, and our shares trade on the NYSE under the symbol DCI. Additional information is available at www.donaldson.com.