Raw data supporting the figure graphs in the research paper entitled “3D-Printed Prefilter with Crystal Violet–Gold Nanocluster Hybrid for Reusable Visible-Light-Activated Antimicrobial Air Filtration

Here, we report a reusable, visible-light-activated antimicrobial filtration system integrating a crystal violet–gold nanocluster (Au@CV) coated pre-filter with a conventional dust filter. Under visible light, the Au@CV layer generated reactive oxygen species (ROS), enabling dual antimicrobial action. The raw data supporting the figure graphs in this article, including UV–Vis spectra, XPS, fluorescence emission data, and microbial assays related to the study, are available.