Exhibit 31-B
Certification of Chief Financial Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
I, Thomas R. VerHage, certify that:
1. | I have reviewed this annual report on Form 10-K/A of Donaldson Company, Inc.; and |
2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
Date: | March 1, 2011 |
| /s/ Thomas R. VerHage |
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| Thomas R. VerHage |
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