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EXHIBIT 23.2
CONSENT OF INDEPENDENT ACCOUNTANTS
We hereby consent to the incorporation by reference in this Amendment No. 1 to
the Registration Statement on Form S-3 (File No. 333-34450) of our report dated
January 28, 2000 relating to the financial statements, which appears in the 1999
Annual Report to Shareholders, which is incorporated by reference in MKS
Instruments, Inc.'s Annual Report on Form 10-K for the year ended December 31,
1999. We also consent to the incorporation by reference of our report dated
January 28, 2000 relating to the financial statement schedule, which appears in
such Annual Report on Form 10-K. We also consent to the references to us under
the headings "Experts" in such Registration Statement.
/s/ PRICEWATERHOUSECOOPERS LLP
Boston, Massachusetts
July 13, 2000
