What device is used to move gases through a specific assembly?

The device that is primarily used to move gases through a specific assembly is an air mover. Air movers are designed to enhance air circulation, promote gas flow, and facilitate ventilation in enclosed spaces. They work by creating airflow that helps to transport gases, making them effective in applications such as confined space rescue operations where proper ventilation of potentially hazardous gases is crucial for safety.

In contrast, a gas generator primarily produces gases and is not focused on the movement of gases through an assembly. A vacuum extractor is designed to remove gases, fluids, or debris from one area, rather than moving them through an assembly. Meanwhile, a compressor increases the pressure of a gas and can push it into a system, but its primary function is not just to move gases through an assembly but to compress them for storage or use. Thus, air movers most directly address the requirement to move gases effectively in confined spaces.