Dead air

"They fired the production engineer because too many moments of dead air were interrupting the broadcast."

"Today we're going to try sitting with silence a bit. Don't worry about any moments of dead air in the conversation."

"Sealing up the house so perfectly, without planning for any active ventilation to replace the passive ventilation that you have eliminated, is not a good idea, because it encourages pockets of dead air. If you're going to seal it up so tight, then you need to plan for active ventilation through a filter, rather than no ventilation at all."