A delayed takeoff for new passenger cabin air purification technology

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Air Quality

Further improvements are needed before a promising new technology can be used to upgrade air quality in commercial jetliner cabins, scientists from Austria, Denmark and the United States have concluded in a study scheduled for the Jan. 1 issue of ACS' Environmental Science & Technology, a semi-monthly publication.

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Armin Wisthaler and colleagues studied photocatalytic oxidation, a leading candidate for improving the quality of air in commercial jetliners. Existing air purification technology removes airborne particles, but not odors and the volatile organic compounds (VOCs) that may cause eye and nose irritation. Photocatalytic oxidation units can remove VOCs, and aircraft manufacturers have considered using that technology in combination with existing air filtration systems.

The researchers checked the ability of two prototype air cleaners, combining filtration and photocatalytic oxidation, during simulated seven-hour flights. A seemingly trivial event

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