The poor ventilation was just one of the reasons Darrah didn't venture down here that much.

You are likely to get tuberculosis in places with poor ventilation or crowded conditions.

The basic problems result from excess moisture and poor ventilation, he said.

The class was also considered to have very poor ventilation, especially in the engine compartment.

Thus poor ventilation in planes sitting on the ground is still all too familiar.

It has further encouraged people to avoid crowded places with poor ventilation.

The building, with its funky electrical system and poor ventilation, was a disaster waiting to happen.

The temperature inside is far hotter than outdoors because of poor ventilation.

Despite being held underground without daylight and with poor ventilation, we were able to relax a little in this place.

Other plants have poor ventilation, and the expense of new systems is too great.