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.
Synonyms / Sinônimos
overpressureabove-atmospheric pressureelevated pressure
Antonyms / Antônimos
negative pressurebelow-atmospheric pressurevacuum

Regional Variations

General Brazilian
pressão positiva
standard term used in medical and engineering contexts
São Paulo
pressão positiva
technical term commonly used in hospitals and industries
Rio de Janeiro
pressão positiva
same as standard Brazilian Portuguese
Portugal
pressão positiva
identical usage in Portuguese European medical terminology

Related Words

pressure differentialmechanical ventilationPEEP (positive end-expiratory pressure)air pressureventilation system

Related Idioms & Phrases

maintain positive pressure
create positive pressure
apply positive pressure
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