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The Orange Box: Portal Hints
How can I drop down past the fan without getting killed?
1 of 5: You can't just drop through the fan blades.
2 of 5: You'll have to portal past the fan.
3 of 5: Fire blue portals at one of the walls in the room below the fan until you get one through the blades.
4 of 5: Then go back the way you came and exit the vent shaft.
5 of 5: Open an orange portal on a nearby concrete wall and walk through to find yourself under the fan.
