Abstract: The present invention features interferon-free therapies for the treatment of HCV. Preferably, the treatment is over a shorter duration of treatment, such as no more than 12 weeks. In one aspect, the treatment comprises administering at least two direct acting antiviral agents to a subject with HCV infection, wherein the treatment lasts for 12 weeks and does not include administration of either interferon or ribavirin, and said at least two direct acting antiviral agents comprise (a) Compound 1 or a pharmaceutically acceptable salt thereof and (b) Compound 2 or a pharmaceutically acceptable salt thereof.

Abstract: The present invention relates to the passage and device of an air purifier having a plurality of filter layers of light catalyst disposed layer by layer on a predetermined space, and a plurality of engraved openings formed on the surface of each filter layer, and a plurality of recessions formed on the surface panel. When each filter layer is stacked, the recession of each filter layer is disposed on surface of each filter layer below, and forms an isolating section at where the recession lands such that a plurality of passages having appropriate gaps between every two filter layers and every two isolating sections. The air can pass through the passage between two filter layers and thus accomplishes the disinfections effect, and such device can be installed between a base having a fan and a cover having a gas inlet and a gas outlet where an infrared light illuminates each filter layer.