General Aviation. Direct & Unfiltered.

Donaldson to Supply Engine Air Intake Filters for New Cirrus SR22T Aircraft

New filter design offers more efficient airflow than previous systems

MINNEAPOLIS, MN – July 21, 2010 – Donaldson Aerospace & Defense, a division of Donaldson Company (NYSE:DCI), announced today that the company has initiated a new OEM agreement with Cirrus Aircraft to supply engine air intake filters for the new Cirrus SR22T aircraft. Shipments began in June 2010.

Cirrus Aircraft selected Donaldson for its reputation of providing superior filtration technologies for the aerospace industry and for its ability to develop a tailor-made solution to fit this specialized application. “We’re very pleased that Cirrus Aircraft has selected Donaldson air filtration technology for this state-of-the-art aircraft,” said Sheila Peyraud, General Manager of Aerospace & Defense at Donaldson Company. “The Donaldson engine intake filter is manufactured using a fiberglass, synthetic media and is designed to provide maximum airflow to the engine in this high-performance aircraft.”

The Cirrus SR22T is the newest member of the Cirrus SR22 family of composite airframe piston engine aircraft. The key feature of the four-seat airplane is the 315 HP twin turbocharged TSIO-550-K engine. Providing air to the engine is a redesigned cowl with new, dedicated NACA (National Advisory Committee for Aeronautics) induction inlets – one on each side of the lower cowl – which direct air flow into the dual Donaldson filters. This new system offers improved engine airflow and better performance.

Paul Brey, VP, Product Development at Cirrus Aircraft commented, “The Donaldson engineers went out of their way to understand our application and ensure that their product fit well and worked perfectly from day one. The Donaldson team’s attention to detail and ownership of filtration aspects allowed the Cirrus team to focus on other areas of the aircraft development.”

Be sure to visit our EAA AirVenture booth – #1110 in Hangar A – to find out more about the broad range of Donaldson filtration solutions for aviation applications.

To learn more about Donaldson engine air intake filters, visit or contact us at 1-866-323-0394.

About Donaldson Aerospace & Defense

Donaldson Aerospace & Defense is a leading worldwide provider of filtration systems for the aerospace and defense industries. 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.

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

Wednesday, July 21, 2010

Rod Radosevich
(952) 703-4571