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Matsushita Develops SARS-Inactivating Air Filter
Jul 16, 2004
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Osaka, Japan-based Matsushita Electric Industrial Co., Ltd. said its environment-related subsidiary, Matsushita Ecology Systems Co., Ltd., developed an air filter that neutralizes or inactivates some airborne allergens and viruses, including the severe acute respiratory syndrome (SARS) virus.

Matsushita said it's Panasonic brand will incorporate the filter into air treatment equipment, including air purifiers and humidifiers.

The air filter makes use of a new anti-allergen material, called Super Alleru-Buster, and a polyphenol-based anti-virus agent.

Super Alleru-Buster is a phenol polymer-based anti-allergen material for air filters. Matsushita said that, compared to its predecessor, the Alleru-Buster, the new fortified material can capture and inactivate more airborne particulates such as animal dander, mold spores, dust mites, and pollen when used in air filters. The company says this is the first filter in the world with demonstrated effectiveness in neutralizing animal dander or mold spores.

Panasonic also developed new technologies to enable the Super Alleru-Buster to be blended and coated onto the filter substrate together with antibacterial and antivirus agents, including catechin, a polyphenol compound found in green tea.

Panasonic developed air filters using catechin jointly with Mitsui Norin Co., Ltd., and has used them in air purifiers. Matsushita says they are highly effective in inactivating the SARS virus, and that no other air filters have ever exhibited anti-SARS activity.

The technologies involved in developing the air filter will be presented at the Society for Antibacterial and Antifungal Agents conference in Fukui, Japan, in October 2004. Panasonic has filed five Japanese patents on this product.

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