The HVAC mini duct is a type of air conditioning system that is designed to be more efficient and cost-effective than traditional air conditioning systems. It works by using a smaller duct system to provide a more efficient air flow, allowing for better temperature control and improved energy efficiency. The mini duct system is ideal for smaller spaces, such as apartments or offices, where traditional air conditioning systems may not be able to fit. It also works well in larger spaces, such as homes, where it can provide better temperature control and energy efficiency. The mini duct system is typically more expensive than traditional air conditioning systems, but it is also more efficient and can save money in the long run. Additionally, the mini duct system is easier to install and maintain, making it a great choice for homeowners who want to save money and energy.