Volatile substances are materials that can easily evaporate at room temperature, turning from liquid to gas. Common examples include alcohol, acetone, and gasoline. These substances often have strong odors and can be found in many household products, such as cleaners and paints. Due to their ability to vaporize quickly, volatile substances can pose health risks if inhaled in large amounts. They may cause dizziness, headaches, or respiratory issues. Proper ventilation and safety precautions are essential when using products containing these substances to minimize exposure and ensure safety.