Flexible air duct connections may pass through which of the following?

Flexible air duct connections are specifically designed to alleviate stress in the HVAC system by absorbing vibrations and allowing for some movement. However, they should not pass through walls, ceilings, or floors, as doing so can create potential violation of building codes and lead to issues such as air leakage, reduced efficiency, or even structural problems. When flexible duct connections are poorly installed or routed improperly, it can also become difficult to access or repair the duct system, further complicating maintenance efforts.

By keeping flexible connections outside of walls, ceilings, and floors, it promotes better airflow and allows for easier inspection and repair if necessary. Proper installation practices dictate that flexible duct connections must be used only in suitable locations while ensuring compliance with local building codes and recommendations. Thus, avoiding the use of flexible duct connections in these areas is essential for maintaining the integrity and efficiency of the HVAC system.