Point of Use Devices are systems designed to provide immediate access to specific services or resources at the location where they are needed. Common examples include water filters, which purify drinking water directly from the tap, and electric heaters that supply hot water on demand. These devices are often used in homes and businesses to enhance convenience and efficiency. These devices can improve safety and reduce waste by delivering resources only when required. For instance, a water filter can eliminate contaminants, ensuring clean drinking water without the need for large storage tanks. Similarly, electric heaters can save energy by heating water only when it is needed.