DONALDSON OFFERS HIGH-PERFORMANCE, REUSABLE ENGINE INTAKE FILTERS FOR ROBINSON R22S, R44S

OSHKOSH, Wisc., July 28, 2013 – Donaldson Aerospace & Defense, a division of Donaldson Company, Inc. (NYSE: DCI), is offering new, high-performance, reusable engine air filters for Robinson Helicopter Company’s popular R22 and R44 models.

Available now through Robinson’s parts network, the new filters draw on Donaldson’s advanced aerospace filtration expertise to protect Lycoming carbureted and fuel-injected engines powering the R22 and R44. The filters, part number P625364 (B771-1) for the R22 and P625370 (B771-2) for the R44, replace automotive-style paper filters.

The new filters feature Donaldson’s high-performance, synthetic dry media designed to maximize the capture of contaminants while minimizing engine intake air pressure drop in operating conditions from minus 40 degrees to 200 Fahrenheit. The lightweight filter contains the media pack within aluminum end covers and liners. Unlike competitive offerings, the Donaldson media does not require oiling, which makes the filter easy to clean and reuse. The filter should be inspected every 100 flight hours, and the specially designed media can be cleaned by blowing out with compressed air and washing it with a mild detergent.

“The Robinson R22 and R44 are among the most popular helicopters flying today and play important roles in training the next generation of pilots,” said Mark Brandenhoff, Global Director of Sales Aerospace & Defense. “These high-performance filters help protect the performance of the helicopters’ engines on those and other important missions while simplifying maintenance requirements for R22 and R44 owners and operators.”

Donaldson will exhibit these and other products to protect the performance and reliability of general aviation aircraft at EAA’s 2013 Airventure Oshkosh from July 29 through August 4. Donaldson’s exhibit is at Booth No. 1110 in Hangar A.

For nearly a century, Donaldson has been developing and manufacturing lightweight, compact, advanced-technology filtration solutions that meet or exceed original equipment manufacturers’ performance requirements and international quality requirements and keep flight-critical aircraft components running efficiently and effectively. Customers count on Donaldson’s comprehensive product line to help them maintain mission readiness. With its proprietary technology and unmatched reputation for quality, service and reliability, Donaldson leads the way in meeting the unique filtration requirements of aerospace and defense customers worldwide.

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

About Donaldson's Aerospace & Defense Group

Donaldson Aerospace & Defense 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, providing quality products and prompt customer service. Our group serves customers from sales, engineering, and manufacturing locations around the world. To learn more about the Donaldson Aerospace & Defense group, visit www.donaldsonaerospace-defense.com.

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 over 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.