VOCs are emitted from a complex variety of anthropogenic and natural sources to the earth’s atmosphere. There is growing evidence that both aerosol and non-aerosol consumer products, including personal care products (PCPs) and household cleaning products (HCPs), contribute an increasing proportion to anthropogenic VOC emissions, as historical sources of VOCs such as road transport continue to decline. An increasing fraction of VOC emissions come from the domestic use of solvents, which are contained within myriad commonplace consumer products, however emissions rates are often poorly characterized and depend significantly on individual behavior. An ability to selectively quantify VOC real-time concentrations and emissions in both ambient and indoor air is of importance to understand and characterize the sources and sinks for individual VOCs.