DONALDSON DEVELOPING NEW FILTRATION SOLUTIONS FOR CIVIL AND MILITARY ROTORCRAFT

ORLANDO, FL — MARCH 3, 2015 — Donaldson Aerospace & Defense, a division of Donaldson Company, Inc. (NYSE: DCI) which, this year, is celebrating its 100th anniversary, is focused in 2015 on developing new filtration solutions for numerous civil and military rotorcraft programs.

The company’s initiatives cover in-service, vertical-lift aircraft as well as the newest generation of civil and military helicopters. Donaldson is working to make its innovative Inlet Barrier Filter (IBF) engine air system and other filtration solutions available as original equipment from the helicopter manufacturer’s factory in addition to the traditional option of a retrofit. It also is pursuing new capabilities for IBF customers by developing dry-media filter modules to supplement the oiled-filter modules in use today.

“For a full century, our products have proven their ability to keep customers’ equipment operating safely, reliably and efficiently,” said Bob Stenberg, Business Development Director at Donaldson Aerospace & Defense in St. Louis. “In our next century, we aim to make it even easier for customers to realize these significant benefits by improving their ability to acquire, operate and maintain Donaldson’s advanced filtration solutions.”

Donaldson will be displaying its latest products March 2-5 during Heli-Expo 2015 at Booth No. 4600 at the Orlando Orange County Convention Center.

Following its January introduction of the first certified IBF system for the T2 version of Airbus Helicopters’ EC130, Donaldson is developing IBFs for additional in-service aircraft such as Robinson Helicopter’s R66 and Bell Helicopter’s 214B BigLifter. IBFs are already certified for use on a wide range of AgustaWestland, Airbus, Bell and MD Helicopters aircraft.

Donaldson is developing IBF installations for some of the newest civil helicopters: the 19-passenger, twin-engine AW189, and Bell’s single-engine 505 Jet Ranger X and “super-medium” weight-class 525. Donaldson also is providing transmission oil filter assemblies for the 525 Relentless’ main rotor gearbox, tail rotor gearbox, intermediate gearbox and reduction gearbox.

To enhance its IBF’s benefits in the most extreme operational environments, Donaldson is certifying multiple next-generation, non-woven dry filter media systems. Dry media has the potential to simplify filter maintenance by eliminating the need to re-oil the filter, and has already been battle-tested on U.S. BLACK HAWK helicopters in Iraq.

To learn more about the Donaldson Aerospace & Defense group, visit www.DonaldsonAerospace-Defense.com.

About Donaldson’s Aerospace & Defense Group

Donaldson’s Aerospace & Defense Group is a leading worldwide provider of filtration systems for the aerospace and defense industry. Our filtration solutions protect fixed-wing aircraft, rotorcraft, military ground vehicles, electronic equipment, space vehicles, missiles, military shipboard systems and amphibious vehicles. We are committed to advancing filtration technology and providing quality products and prompt customer service. Our group serves customers from sales, engineering and manufacturing locations around the world.

About Donaldson Company

In 2015, Donaldson celebrates a century of providing global filtration solutions that improve people’s lives, enhance Customers’ equipment performance and protect the environment. The 100-year-old, technology-driven Company is committed to satisfying Customers’ needs for filtration solutions through innovative research and development, application expertise and a global presence. Over 12,800 dedicated employees contribute to the Company’s success by supporting Customers at 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, whose shares trade on the NYSE under the symbol DCI. Additional information is available at www.Donaldson.com.  For More Information: Robert Stenberg, P: (636)300-5267, E: Bob.Stenberg@donaldson.com