Ducts are tubes or channels that help move air, water, or other substances from one place to another. In homes, HVAC systems use ducts to distribute warm or cool air throughout different rooms. This ensures that every part of the house stays comfortable, regardless of the weather outside. In addition to heating and cooling, ducts can also be used in industrial settings to transport materials like dust or fumes. Properly designed and maintained ducts are essential for efficiency and safety, as they help prevent leaks and ensure that everything flows smoothly.