A bathroom is a room in a home or building designed for personal hygiene activities. It typically contains essential fixtures such as a toilet, sink, and shower or bathtub. Bathrooms are often equipped with mirrors, storage cabinets, and sometimes additional features like towel racks or shelving for toiletries. Bathrooms can vary in size and style, from small powder rooms to large spa-like retreats. They are usually finished with water-resistant materials like tile or vinyl to withstand moisture. Proper ventilation is important in bathrooms to prevent mold and maintain air quality.