positive pressure
[ˈpɑːzətɪv ˈpreʃər]
noun
pressão positiva
1. A condition where the pressure inside a space is greater than the pressure outside it, forcing air or fluid outward
The hospital uses positive pressure in the operating room to prevent contamination.
O hospital utiliza pressão positiva na sala de cirurgia para prevenir contaminação.
2. In medical contexts, mechanical ventilation that pushes air into the lungs at a pressure above atmospheric pressure
Positive pressure ventilation helped the patient breathe during recovery.
A ventilação com pressão positiva ajudou o paciente a respirar durante a recuperação.
3. In HVAC systems, air pressure that exceeds atmospheric pressure inside a building or room
Maintaining positive pressure in the cleanroom ensures air flows outward.
Manter pressão positiva na sala limpa garante que o ar flua para fora.
The term 'positive pressure' is predominantly technical and used in medical, industrial, and engineering fields in both the United States and Brazil. During the COVID-19 pandemic, it gained broader public awareness in discussions about hospital isolation rooms and ventilation systems. In Brazil, this terminology became more commonly understood in medical and construction contexts.
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