👉 QC fumes, or Quartz Cleaning Fluid fumes, are a type of volatile organic compound (VOC) commonly emitted by cleaning products that contain hydroquinone, a powerful bleaching agent. These fumes can be irritating to the eyes, nose, and throat, causing symptoms like coughing, sneezing, and shortness of breath. Prolonged exposure may lead to more severe health issues, including respiratory problems and, in some cases, neurological effects. To minimize risks, it's advisable to work in well-ventilated areas, use fume extraction systems, and follow safety guidelines when handling these chemicals.