Paints and stains contain high levels of VOCs (volatile organic compounds), and exposure can cause negative side effects like dizziness, eye and lung irritation, fatigue, headaches, or worse. To minimize these symptoms, always maintain proper ventilation when painting an indoor space. Open all windows and position an exhaust fan toward the window to help paint fumes travel outdoors, or use a window-mounted box fan to achieve the same effect. Leave the windows open for 2–3 days after finishing the project, and limit your time in the room during that period. For additional protection, choose to wear a respirator while painting or staining.