Exhibit 23.2

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 28, 2011 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in the 2010 Annual Report to Shareholders, which is incorporated by reference in Mine Safety Appliances Company’s Annual Report on Form 10-K for the year ended December 31, 2010. We also consent to the incorporation by reference of our report dated February 28, 2011 relating to the financial statement schedule, which appears in such Annual Report on Form 10-K.

/s/ PricewaterhouseCoopers LLP

Pittsburgh, Pennsylvania

May 27, 2011