Volatile Organic Compounds (VOCs) are a group of organic chemicals that have high vapor pressure at ordinary room temperature. This characteristic causes them to evaporate and enter the atmosphere quickly. VOCs are emitted by a wide array of products, from household items like paints and cleaning supplies to industrial outputs and even biological processes. They are significant in the context of cancer research due to their potential role as biomarkers for early cancer detection and their possible carcinogenic effects.