Donaldson Company, Inc. (NYSE: DCI), announced today that its Board of
Directors has increased the quarterly common stock cash dividend by 15
percent, from 13 cents per share to 15 cents per share. Donaldson had
previously increased its dividend in November, bringing the total
increase so far in fiscal 2011 to 20 percent.
The Board declared a regular cash dividend of 15 cents per share,
payable June 24th to shareholders of record as of June 10th.
As of April 30th, there were approximately 76,300,000 shares
outstanding.
The current declaration is the 223rd consecutive quarterly
cash dividend paid by Donaldson over a time span of 55 years.
About Donaldson Company, Inc.
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 12,800 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.

Donaldson Company, Inc.
Rich Sheffer, 952-887-3753
May 24, 2011