Windows are such important features of a room that it is weird to think of one without them. For a natural airflow, they are bare essentials and an extremely potent poor ventilation solution. But there might be certain situations where a room has to be made sans windows for purposes ranging from a workshop to a laundry room or a bathroom or sewing room. In these cases, ventilating such windowless rooms becomes very important. Here below are some easy and innovative means of solving the problem.