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Donaldson Offers New Hepa Cabin Air Filters For Boeing 777 Airplanes

17 January, 2002
Donaldson Company, Inc.
P.O. Box 1299
Minneapolis, Minnesota 55440

Tina Plant

(952) 887-3863



FAA-PMA and Boeing approval pave the way for worldwide sales

MINNEAPOLIS, January 17, 2002 - Donaldson High Purity Products, a division of the Donaldson Company, Inc. (NYSE: DCI) that designs and manufactures air filters for the aviation industry, today announced that it has received FAA-PMA and Boeing OEM approval on its HEPA cabin air recirculation filters for B777-200 and B777-300 airplanes. The HEPA filters remove 99.97% of 0.3micron particles from recirculated cabin air. The 0.3micron standard is used because it represents the most difficult particle size to capture. The filters are more effective on larger and smaller particles.

The Donaldson HEPA filters meet all FAA and Boeing air-worthiness specifications. They are manufactured to meet or exceed critical requirements for efficiency, life, weight and Skydrol® resistance. The recommended service interval is one C-Check.

Commercial operators of Boeing B777-200/300 airplanes are encouraged to update their Maintenance Planning Document (MPD) to include Donaldson part number P199777 and Boeing part number S210W002-1.

Donaldson Company also offers FAA-PMA and OEM approved filters for B777-200/300 aircraft for avionics equipment cabinets, smoking sections, vacuum lavatory compressor systems and work stations.

Donaldson Company, Inc., headquartered in Minneapolis, Minn., is a leading worldwide provider of filtration systems and replacement parts. Founded in 1915, Donaldson is a technology-driven company committed to satisfying customer needs for filtration solutions through innovative research and development. Donaldson serves customers in the industrial and engine markets including dust collection, power generation, specialty filtration, off-road equipment, trucks, and automotive. More than 8,200 employees contribute to the company's success at 40 manufacturing locations around the world. In fiscal year 2001, Donaldson reported record sales of more than $1.1 billion and achieved its 12th consecutive year of double-digit earnings growth. Donaldson is a member of the S&P MidCap 400 Index and Donaldson shares are traded on the New York Stock Exchange under the symbol DCI. Additional company information is available at

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