puraDYN(R) Becomes Master Distributor for Rentar(R) Fuel Catalyst; Fuel Cost Savings with Catalyst System Estimated between 2%-21%

BOYNTON BEACH, Fla.--Sept. 13, 2005--puraDYN Filter Technologies Incorporated (OTCBB:PFTI) announced today that it has signed an agreement with Rentar Environmental Solutions, Inc. to become Master Distributor in North America for the Rentar(R) Fuel Catalyst (RFC).

The West Palm Beach-based Rentar designs and manufactures the patented and proprietary pre-combustion fuel catalyst for diesel engines that allows fuel to burn cleaner and more efficiently, significantly decreasing the rate of fuel consumption.

Rentar has been providing its Fortune 500 clients an important tool to help soften the cost of rising fuel prices, along with the ability to reduce harmful diesel emissions.

Rentar's President Joel Ratner said, "We're looking forward to working with puraDYN. The inroads they've been able to make within specific, targeted markets and the growth of their distributor network in North America and internationally over the past few years will greatly enhance exposure for our Rentar(R) Fuel Catalyst. With a product similar to ours in that it offers dual benefits from an environmental as well as economic standpoint, we feel we're 'on the same page' in the marketplace.

"A good example would be a recently accepted large aggregate company who, in addition to approving the puraDYN(R) bypass oil filtration system has, after a controlled test, also approved the use of the RFC for its off-road equipment. Actual haul trucks installed with the RFC running 20 hours per day, 6 days per week, 52 weeks per year, save over $10,000 in fuel costs per year for each truck at today's prices."

Ratner went on to size up recent developments within the diesel truck industry: "When you provide a potential client with hundreds of hours of test results from some of the most respected independent testing facilities in the U.S., including U.S. Army and Toyota real-life application results, all proving that our system reduces harmful CO, CO2, NOx and particulate matter emissions between 5%-54%, depending upon the application, they become extremely interested.

"But, when you add documented evidence from the same test results showing a 2%-21% savings in fuel, depending on the application, you quickly see them adding up the savings."

Richard C. Ford, CEO, puraDYN, couldn't agree more. "The RFC is a perfect tie-in with our bypass oil filtration system, rounding out our product line. We're excited about becoming Master Distributor for Rentar in North America and internationally and offering their product throughout our distribution network. Similar to our puraDYN(R) system, the RFC has no moving parts and requires no ongoing maintenance. Offering the RFC system in conjunction with our puraDYN(R) system, we're able to provide a complete package for any application with environmental benefits and cost savings in fuel and oil purchases."

In addition to being an official partner in the federally-certified ENERGY STAR(R) program, Rentar's current list of clients using the RFC include, but is not limited to, the State of Delaware, the City of New York, Toyota's entire car carrier fleet in California, Martin-Marietta and the Rogers Group. For more information on the Rentar(R) Fuel Catalyst system, contact your local puraDYN distributor or puraDYN Customer Service at 1-888-787-2396 in North America or (T) 561-547-9499.

About puraDYN Filter Technologies Incorporated

puraDYN (OTCBB:PFTI) designs, manufactures and markets the puraDYN(R) Bypass Oil Filtration System, the most effective filtration product on the market today. It continuously cleans lubricating oil and maintains oil viscosity to safely and significantly extend oil change intervals and engine life. Effective for internal combustion engines, transmissions and hydraulic applications, the Company's patented and proprietary system is a cost-effective and energy-conscious solution targeting an annual $13 billion potential industry. The Company has established aftermarket programs with several of the transportation industry leaders such as Volvo Trucks NA, Mack Trucks, PACCAR; a strategic alliance with Honeywell Consumer Products Group, producers of FRAM(R) filtration products; and continues to market to major commercial fleets. puraDYN(R) equipment has been certified as a 'Pollution Prevention Technology' by the California Environmental Protection Agency and was selected as the manufacturer used by the US Department of Energy in a three-year evaluation to research and analyze performance, benefits and cost analysis of bypass oil filtration technology.

Statements in this press release which are not historical data are forward-looking statements which involve known and unknown risks, uncertainties or other factors not under the Company's control, including but not limited to the possible inability to raise capital funds, lack of protection from intellectual property, vulnerability because of manufacturing a limited number of products, dependence on distributors, orders previously stated in this press release may not materialize, and the possibility that the products do not meet customers' needs, which may cause actual results, performance or achievements of the Company to be materially different from the results, performance or other expectations implied by these forward-looking statements. These factors include, but are not limited to, those detailed in the Company's periodic filings with the Securities and Exchange Commission.