Exhibit 32.1

POLYPORE INTERNATIONAL, INC.

CHIEF EXECUTIVE OFFICER CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Polypore International, Inc. (the “Company”) on Form 10-Q for the period ended July 2, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Robert B. Toth, President and Chief Executive Officer of the Company, does hereby certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 5, 2011	/s/ Robert B. Toth
	Robert B. Toth
	President and Chief Executive Officer