ventilation system

They also usually have their own special natural ventilation system.

The ventilation system was the same, too similar to be a matter of chance.

"Has the ventilation system been started up in number one?"

The problem, it seems, was a fire in the ventilation system.

These doors are an important part of the ventilation system.

Turning off the ventilation systems when the school is not in use, he said.

And now she also understood why the ventilation system was no longer working.

Effects of wind on the ventilation system in a building.

Government officials said its ventilation system was not connected to the rest of the building.

We've been trying to learn his route through the ventilation system.

Almost all you hear is the rush of air in the ventilation system.

As yet the ventilation system had been unable to clear it.

See, the ventilation system is such a great place for the homeless kids to live.

They also hope to add filters in the ventilation system.

"But there's no central ventilation system and our tests show nothing went up to the living area."

Then he felt chilled, as if the ventilation system had let in the air of the cold morning outside.

And the ventilation system in the chemistry building does not meet current health standards.

The only fun bit was clearing out the street kids from the ventilation system.

She kept the ventilation system on high for the long seconds of the ride back.

Get up to environmental systems and have the tech check the ventilation system.

They also gave it "very poor marks" for the ventilation system.

First, the building's natural ventilation system had been removed in a past repair.

To help reduce this, a new ventilation system was installed in 2006.

The ventilation system is out and the lights are very dim.

That may be related to the structure of the suit's ventilation system.