Because they can be used in commercial and residential buildings, duct systems are very versatile. This unit can be more costly if it is installed in commercial settings. However, the installation cost for this type unit is very affordable. Because of its complex duct system, this unit requires professional maintenance. If you want a sleek look but high quality air, this unit is your best option. We are experts in the units that we sell and can help you make the right choice for your home or business.