Donaldson Company, Inc. Corporate Overview

The Company at a Glance ●Founded in 1915 ●10,000+ employees ●Locations in 37 countries ●Sales of $1.9 billion ●Technology leader in filtration sciences

Filtration Markets: Air & Liquid ●Aircraft ●Agriculture ●Compressors ●Computers ●Construction ●Defense ●Disk Drives ●Dust Collection ●Electronics ●Food & Beverage ●Gas Turbines ●Hydraulics ●Light Vehicle ●Manufacturing ●Media ●Mining ●Off-road ●Oil & Gas ●Power Systems ●Semiconductors ●Transportation

Worldwide Sales by Market (F’09 Net Sales) Engine Aftermarket 31% Industrial Filtration 27% Special Markets 8% Gas Turbine 11% Engine 23%

Worldwide Sales by Geography South Africa 2% Europe 30% Asia 23% North America 45% (F’09 Net Sales)

Strong Performance

Innovative Filtration Solutions ●Particulate filtration Ultra-Web ® Nanofibers PTFE Membranes ●Chemical filtration ●Fluid mechanics ●Acoustics ●Structural dynamics

Innovative Filtration Solutions ●R&D target is 2% - 3% of gross sales ●Over 1,500 patents ●Over 550 engineers worldwide

Diverse Customer Relationships

Worldwide Reach, Local Connection ●World Headquarters Minneapolis, Minnesota, USA ●Regional Headquarters Wyong, Australia Leuven, Belgium Hong Kong, SAR Gurgaon, India Tokyo, Japan Aguascalientes, Mexico Changi, Singapore Cape Town, South Africa

Diverse Portfolio of Filtration Solutions

Off-road Vehicles & Equipment ●Our filters maximize performance by delivering long life & protection on machinery, engines & components

Medium & Heavy-duty Trucks ●Our filters maximize performance by delivering long life & engine component part protection

Light Vehicle ●PowerCore™ high-density filter, smaller media package & straight-through air flow design gives unbeatable filtration for increased horsepower

Aerospace ●Air Filtration technologies for cabin air, avionics cooling, electronic systems and main engines ●Fuel Filtration for main engines, APU and hydraulic systems

Defense ●Exclusive filtration & emission control technologies help keep critical military equipment running efficiently & reliably in the most demanding environments

Industrial Hydraulics ●Hydraulic filters & accessories for industrial applications

Bulk Filtration ●Contamination control products for bulk fuel & oil storage and dispensing systems

Compressors ●Our technology in the field of compressed air, gas & fluid separation extends from the compressor room to all point of use in the factory

Process Filters ●Food & beverage purification ●Sterilization of gases ●High-purity filtration

Gas Turbine Systems ●Our air intake systems protect turbines & industrial compressors from airborne contaminants & increase machine efficiency

Industrial Systems ●Filtration technology, filter bag media, filter cartridges and PowerCore ® filter packs for all types of dust, fume, and mist particulate.

Semiconductors ●Our filters eliminate gas-phase & particulate airborne molecular contamination which increases machine uptime & product yields

Disk Drive & Micro-environment Venting ●Our filters & vents protect computers & electronic devices from contamination– humidity, chemical & particulate

Membranes ●Tetratex ® media collects very fine particles while allowing air to freely permeate the membrane

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