Pressurizing Areas

Enclose the area first.

Use the R Repair tool to order repairs for any damaged structures inside or around the perimeter.

Use the E Connect tool to connect all doors, airlocks, and vents to your electric grid.

Close any Vent that are exposed to open space.

Consult the Airtightness and Insulation overlays to find gaps and leaks.

Build at least one Mini Heater and one Mini Oxygen Pump to create a livable atmosphere.