Air vents are openings in buildings that allow air to flow in and out. They are essential for maintaining good indoor air quality and regulating temperature. Air vents can be found in heating, ventilation, and air conditioning HVAC systems, where they help distribute warm or cool air throughout a space. These vents can be located on walls, floors, or ceilings, and they come in various sizes and designs. Properly functioning air vents help prevent the buildup of stale air and moisture, contributing to a healthier living environment. Regular maintenance, such as cleaning, ensures that air vents operate efficiently.