POWER OF ATTORNEY







 KNOW ALL PERSONS BY THESE PRESENTS, that I, Richard B. Lewis

hereby constitute and appoint Amy C. Becker, Peter J. Keller,

Scott J. Robinson, and Tod E. Carpenter, and each of them, my true

and lawful attorneys-in-fact and agents, each acting alone, with full

powers of substitution and resubstitution, for me and in my name,

place and stead, to sign any reports on Form 3 (Initial Statement

of Beneficial Ownership of Securities), Form 4 (Statement of Changes

in Beneficial Ownership of Securities) and Form 5 (Annual Statement

of Changes in Beneficial Ownership) relating to transactions by me

in Common Stock or other securities of Donaldson Company, Inc., and

all amendments thereto, and to file the same, with the Securities

and Exchange Commission and the New York Stock Exchange, Inc.,

granting unto said attorneys-in-fact and agents, and each of them,

or their substitutes, full power and authority to do and perform

each and every act and thing requisite or necessary to be done, as

fully to all intents and purposes as I might or could do in person,

hereby ratifying and confirming all that said attorneys-in-fact

and agents, and each of them, or their substitutes, may lawfully

do or cause to be done by virtue hereof.  This Power of Attorney

shall be effective until such time as I deliver a written revocation

thereof to the above-named attorneys-in-fact and agents.





Dated:  February 13, 2019





/s/Richard B. Lewis

(signature)

Richard B. Lewis