University of California

Hugo Destaillats

William J Fisk

Meera A Sidheswaran

Paul H Berdahl

Thomas Kirchstetter

Mohamad Sleiman

Ronnen Levinson

Hashem Akbari

The present invention provides for a device for reducing a volatile organic compound (VOC) content of a gas comprising a manganese oxide (MnO) catalyst. The manganese oxide (MnO) catalyst is capable of catalyzing formaldehyde at room temperature, with complete conversion, to COand water vapor. The manganese oxide (MnO) catalyst itself is not consumed by the reaction of formaldehyde into COand water vapor. The present invention also provides for a device for reducing or removing a particle, a VOC and/or ozone from a gas comprising an activated carbon filter (ACF) on a media that is capable of being periodically regenerated.

Use of manganese oxide and activated carbon fibers for removing a particle, volatile organic compound or ozone from a gas

This disclosure provides systems, methods, and apparatus related to simulated soiling and weathering of materials. In one aspect, a soiling mixture may include an aqueous suspension of various amounts of salt, soot, dust, and humic acid. In another aspect, a method may include weathering a sample of material in a first exposure of the sample to ultraviolet light, water vapor, and elevated temperatures, depositing a soiling mixture on the sample, and weathering the sample in a second exposure of the sample to ultraviolet light, water vapor, and elevated temperatures.

Mixture and method for simulating soiling and weathering of surfaces

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Scottsdale, AZ, United States of America

Hugo Destaillats