正壓是指一個系統(例如房間)內的壓力大於該系統周圍環境的壓力。因此如果正壓系統出現泄漏,系統內的氣體會排放到周圍環境中,與之相對的負壓[1][2]

醫院可能會讓免疫系統疾病患者入住正壓病房,此時病房內的空氣將流出房間,這樣任何空氣中可能存在的微生物(例如細菌)將很難流入房間。 [2]

參考文獻

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