Item 7.01. Regulation FD Disclosure.

Polypore International, Inc. will be presenting at the William Blair 29th Growth Stock Conference in Chicago, Illinois, which takes place at the Four Seasons hotel at 120 E. Delaware Place in Chicago, Illinois on June 10, 2009. A link to the webcast can be found at http://www.wsw.com/webcast/blair17/ppo/ and will be available for replay for 30 days.

A copy of the slide presentation from the conference is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is also posted to the Investor Relations area of Polypore's website at http://investor.polypore.net/.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No. Description

99.1 Investor Conference Presentation

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