That’s the main kind of ventilation that doctors use today. But there’s also a type that’s not used as often, called a negative pressure ventilator (NPV).

Our fan/duct assembly is schematically illustrated in Figure 3. By adjusting dampers, it can operate in three ways: as a continuously, closed, recirculating air system; as an open, positive pressure ...

Negative pressure rooms in hospitals prevent diseases in the air from spreading outside the room. On Monday, engineers installed an exhaust fan system to the roof of Baptist Health in West Little ...

Negative pressure rooms, also called isolation rooms, are a type of hospital room that keeps patients with infectious illnesses, or patients who are susceptible to infections from others, away ...

A new negative pressure ventilator which could provide additional treatment options for patients with respiratory failure, including those with COVID-19—and whose design can be easily adapted to ...

A novel negative-pressure ventilator supported spontaneous ventilation in conscious, healthy adults and allowed good nursing and monitoring support, according to results of a small study published ...

A new negative pressure ventilator which could provide additional treatment options for patients with respiratory failure, including those with COVID-19 - and whose design can be easily adapted to ...

So, an obvious question arises: is it better to use the fan to push fresh air into the unit to be cooled—positive pressure—or to put the fan on the exhaust side and pull heated air through and out of ...