Below are portions of the Market Share Analysis of the Air Filtration Report.
2003 US: Sales by Subject (Percent)
| G1-4 | F5-9 | H10-U17 | Total | |
| 3M | 0% | 15% | 0% | 8% |
| AAF | 22% | 5% | 9% | 10% |
| Air Kontrol | 3% | 1% | 0% | 1% |
| Airguard | 2% | 5% | 1% | 3% |
| BHA | 0% | 0% | 3% | 1% |
| Camfil Farr | 2% | 8% | 10% | 7% |
| Columbus Industries | 5% | 2% | 0% | 2% |
| Dollinger | 0% | 0% | 0% | 0% |
| Donaldson | 3% | 6% | 15% | 7% |
| Fiberbond | 1% | 1% | 0% | 1% |
| Filtration Group | 1% | 2% | 1% | 2% |
| Flanders Corp. | 9% | 5% | 11% | 7% |
2003 Europe: Sales by Industry (Percent)
| Bioclean | Com/Ins | Electronics | Gas Turbine | Nuclear | Cabin Air | Paint Booth | Portable Air Filters | Residential HVAC | Other | Total | |
| 3M | 1% | 6% | 0% | 0% | 0% | 2% | 0% | 8% | 20% | 0% | 4% |
| AAF | 12% | 19% | 9% | 9% | 22% | 1% | 25% | 8% | 20% | 6% | 12% |
| Camfil | 12% | 19% | 13% | 9% | 17% | 16% | 25% | 7% | 0% | 13% | 14% |
| Delta | 0% | 1% | 0% | 3% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |