Hudson Technologies' Lab Becomes One of Only Three ARI Certified Refrigerant Testing Labs; Certification Validates Hudson's Quality Control and Analytical Expertise.

PEARL RIVER, N.Y. -- Hudson Technologies, Inc. (Nasdaq: HDSN), a leading refrigerant services company specializing in proprietary on-site decontamination services for large comfort and industrial process cooling and refrigeration systems, today announced that its refrigerant testing lab, located in Champaign, Illinois, has been certified by the Air-Conditioning and Refrigeration Institute ("ARI") under ARI's Refrigerant Testing Laboratory Certification Program. The ARI certification signifies that Hudson has demonstrated its ability to accurately perform ARI 700 refrigerant testing in accordance with procedures required under the ARI 700 standard. The ARI 700 standard establishes purity, composition and testing specifications for new or reclaimed refrigerants. Originally a voluntary industry standard developed by the ARI, the EPA has codified the 700 standard and now requires reclaimed refrigerants to meet the ARI 700-1995 standard before they can be sold or resold.

"We are pleased to have successfully completed the rigorous certification process, becoming one of only three companies in the United States to have an ARI Certified Refrigerant Testing Lab," said Kevin Zugibe, Chairman and CEO, Hudson Technologies. "The certification demonstrates that we have a high level of quality control and analytical expertise and should help to grow revenues from providing refrigerant testing services to customers within our industry."

Hudson anticipates that ARI certification will also benefit the company's ChillSMART(TM) program, which incorporates refrigerant sample analysis, currently performed by Hudson's lab to identify energy inefficiencies and potential problems for remediation in a chiller/refrigeration system.

"Hudson's customers now have the added assurance that our lab's ability to perform accurate refrigerant analyses has been independently certified by the very organization that established the industry accepted standard for refrigerant purity," said Mr. Zugibe. "As we continue to introduce predictive and preventative maintenance services to our existing and potential client base, the ARI certification confirms the quality and expertise of our lab, which is critical to the science that Hudson uses to identify inefficiencies in a cooling system. With insight gained from advanced chemical analysis, Hudson's ChillSMART(TM) services can impact the bottom line as they help assure chillers are functioning at peak efficiencies, significantly reducing energy costs, reducing critical maintenance incidents and helping prolong the useful life of the cooling system."

About ARI

ARI is a national trade association representing manufacturers of more than 90 percent of North American produced central air-conditioning and commercial refrigeration equipment. Over the past 45 years, ARI has emerged as the major voice for the air conditioning and refrigeration industry. As one of its most important functions, ARI develops and publishes technical standards for industry products and establishes rating criteria and procedures for measuring and certifying product performance. Many ARI standards are accepted as American National Standards.

About ChillSMART(TM)

Hudson has developed ChillSMART(TM), a predictive and preventative maintenance services program that evaluates the health of a cooling system with in-depth analysis of the system's chemical and mechanical components. Through the use of proprietary computer models and detailed engineering, Hudson provides system specific recommendations to reduce energy costs, increase the system's efficiency and correct problems that if left untreated can lead to catastrophic system failure.

About Hudson

Hudson is a leading provider of innovative solutions to recurring problems within the refrigeration industry. Hudson's proprietary RefrigerantSide(R) Services increase operating efficiency and energy savings, and remove moisture, oils and other contaminants frequently found in the refrigeration circuits of large comfort cooling and process refrigeration systems. Performed at a customer's site as an integral part of an effective scheduled maintenance program or in response to emergencies, RefrigerantSide(R) Services offer significant savings to customers due to their ability to be completed rapidly and at higher purity levels, and can be utilized while the customer's system continues to operate. In addition, the Company sells refrigerants and provides traditional reclamation services to the commercial and industrial air conditioning and refrigeration markets. For further information on Hudson, please visit the Company's web site at www.hudsontech.com.