Exhibit 7(c)(i) [Letterhead of Arthur Andersen LLP 101 Eisenhower Parkway Roseland, New Jersey 07868-1099] February 17, 1998 Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission Mail Stop 11-3 450 Fifth Street, N.W. Washington, D.C. 20549 Dear Sirs: We have read Item 4 included in the attached Form 8-K dated February 16, 1998 of TurboSonic Technologies, Inc. to be filed with the Securities and Exchange Commission are in agreement with the statements contained therein. Very truly yours, /s/Arthur Andersen LLP cc: Richard H. Hurd, TurboSonic Technologies, Inc.