Joseph V. Vittoria

Exhibit 10.12

Xxxxxx X. Xxxxxxxx

0000 Xxxxx Xxxxx Xxxxxxxxx

Xxxx Xxxxx, XX 00000

(T) 000 000 0000 (F) 000 000 0000

Puradyn Filter Technologies, Inc.

0000 Xxxx Xxxxx Xxxx

Xxxxxxx Xxxxx, XX 00000

Attention: Xxxxx X. Xxxxxx, CFO

March 4, 2010

RE:      Standby Commitment Agreement Amendment #12

Dear Xx. Xxxxxx:

            Pursuant to the Standby Commitment Agreement letters dated March 28, 2002, and March 14, 2003 and all Amendments thereto, I, Xxxxxx Xxxxxxxx (the “Lending Party”), agree to extend the payback dates from December 31, 2010 to December 31, 2011.

            All other terms defined in the original Standby Commitment Agreement letters and the Amendments thereto, not otherwise in conflict with this Amendment, shall remain in full force and effect.

            IN WITNESS WHEREOF, the parties hereto have caused this agreement to be executed and delivered by the respective officers hereunto duly authorized on the date first written above.

Xxxxxx X. Xxxxxxxx

Accepted and Agreed:

Puradyn Filter Technologies, Inc.

By:      

            Xxxxx X. Xxxxxx, Chief Financial Officer