Donaldson Promotes Dan Memmen to National Sales Director for Engine Aftermarket

MINNEAPOLIS, MN – July 28, 2010 – Donaldson Company (NYSE:DCI) is pleased to announce the promotion of Dan Memmen to National Sales Director of the Engine Aftermarket Group. In this role, Memmen will lead the sales strategy and execution for Donaldson Engine Aftermarket distribution and private label sales activity in the U.S. and Canada.

Memmen began his career at Donaldson in 2007 as Director of John Deere Sales and moved into his most recent position as Director of Global Truck Markets in December 2008. Prior to joining Donaldson he served as the National Sales Manager for Schumacher Electric Company, leading the development, branding, and launch of commercial battery charger and jump starter products. Prior to Schumacher, Memmen was the Director of Sales, Commercial Equipment for Century Manufacturing. He holds a Bachelor of Science degree in Marketing from Western Michigan University and an MBA from Canisius College in Buffalo, New York.

"In his current role with Donaldson, Dan has been instrumental in elevating our Global Truck OEM sales team's effectiveness in the marketplace, allowing us to gain share," said Joe Lehman, Vice President, Engine Aftermarket at Donaldson Company. "His leadership, creativity and prior experience in distribution will make him an excellent leader for our National Sales team."

Memmen steps in to replace Rick Kashmerick who, after 26 years at Donaldson, will retire from the company in August. Kashmerick has held several key sales management positions during his tenure with Donaldson. "We want to thank Rick for his dedication to Donaldson," continued Lehman. "His tireless commitment to the Engine Aftermarket business has grown our domestic market ten-fold. We wish him all the best in his retirement."

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 a technology-driven company committed to satisfying our customers' needs for filtration solutions through innovative research and development, application expertise, and global presence. Our employees contribute to the company's success by supporting our customers at our more than 100 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.