East Hills, NY (April 21, 2005) - - Questions about whether passengers, pilots and cabin crew are at risk from exposure to contaminated air on airplanes is the subject of the first world conference on "Contaminated Air Protection: Air Safety and Cabin Air Quality" at the Imperial College, London, today. The International Aero Industry Conference brings together for the first time the latest independent and scientific evidence on the issue. In the presentation "Cabin Air Filtration Solutions: Present and Future", Karen Bull, Pall Corporation, (NYSE:PLL) examines the latest filtration technologies available today to remove air contaminants. She also evaluates potential new or enhanced features for filtration systems under consideration to further improve air quality in the future.
"Airlines want improved quality of recirculated cabin air, improved quality of outside air, and improved protection for passenger and crews from exposure to contaminants, including viruses and bacteria," says Ms. Bull. "In addition, they need to offer these benefits at a reasonable operating cost." Most modern aircraft typically rely on High Efficiency Particulate Air (HEPA) filters to improve cabin air quality of recirculated air. (Passenger aircraft generally use a mixture of approximately 50/50 outside air and recirculated air.) HEPA filters remove particulate contaminants such as dust, fibers, skin flakes, smoke droplets and microbes. These filters meet the European Standard of 85% to 99.995% particulate removal efficiency (EN1822-1:1998).
She explains that the latest Pall technology exceeds the standard for HEPA filters: removal efficiency of 99.97 percent. Pall 'true HEPA' filters have a microbial removal efficiency of greater than 99.999 percent and provide the microbial equivalent of outside air. Their performance and specifications have been validated through microbial challenge tests, which provide a more accurate assessment of ability to remove viruses and bacteria, including those that are of concern today such as SARS and avian flu virus.
In addition to microbes, trace volatile organic compounds (VOCs) may also be present in the air entering an aircraft's environmental control system. VOCs include hydraulic fluids, engine lubricants, jet fuels, de-icing fluids, in-flight catering and human bio effluent. An aircraft filtration system can be designed to efficiently remove VOCs and hence, the associated odors.
"Using the most advanced filtration technology available today, both objectives can be achieved. 'True HEPA' filters efficiently reduce the transmission of particulate contamination including microbes. New technologies are available to reduce the transmission of VOCs and odors," Ms. Bull concludes.
Ms. Bull reviews several new types of filtration technologies under consideration for development. One is a regenerable VOC/odor removal approach to improve quality of recirculated air. A regenerable filter would be installed permanently into an aircraft's environmental control system, avoiding the need for changing and disposing of filter elements, and requiring only minimal maintenance. Another potential enhancement is a high temperature VOC removal filter that can tolerate temperatures over 200 degrees Celsius (392 degrees Fahrenheit) to improve the quality of air that could enter the cabin.
Pall is the world's leading designer and manufacturer of advanced fluid clarification products for the commercial aviation industry as well as for military aircraft, marine and mobile equipment.
About Pall Corporation Pall Corporation is the global leader in the rapidly growing field of filtration, separations and purification. Pall's business is organized around two broad markets: Life Sciences and Industrial. The Company provides leading-edge products to meet the demanding needs of customers in biotechnology, pharmaceuticals, transfusion medicine, semiconductors, water purification, aerospace and broad industrial markets. Total revenues for fiscal 2004 were $1.8 billion. The Company headquarters are in East Hills, New York with extensive operations throughout the world.
Forward-Looking Statement This release contains "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995. These statements are based on current Company expectations and are subject to risks and uncertainties, which could cause actual results to differ materially. Such risks and uncertainties include, but are not limited to: fluctuations in foreign currency exchange rates; regulatory approval and market acceptance of new technologies; changes in product mix and product pricing and in interest rates and cost of raw materials; the Company's success in enforcing its patents and protecting its proprietary products and manufacturing techniques and its ability to achieve the savings anticipated from its cost reduction initiatives; global and regional economic conditions and legislative, regulatory and political developments; and domestic and international competition in the Company's global markets. Additional information regarding these and other factors is available on the Web at www.pall.com and is included in the Company's reports filed with the U.S. Securities and Exchange Commission. Copies of such reports can be obtained, without charge, at www.sec.gov.