Oxygen gas (O
2) can be toxic at elevated partial pressures, leading to convulsions and other health problems.[j] Oxygen toxicity usually begins to occur at partial pressures more than 50 kilopascals (kPa), equal to about 50% oxygen composition at standard pressure or 2.5 times the normal sea-level O
2 partial pressure of about 21 kPa. This is not a problem except for patients on mechanical ventilators, since gas supplied through oxygen masks in medical applications is typically composed of only 30%–50% O
2 by volume (about 30 kPa at standard pressure). (although this figure also is subject to wide variation, depending on type of mask).
To what is 50 kilopascals equal?
50% oxygen about 50% oxygen composition at standard pressure about 50% oxygen composition at standard pressure
Oxygen gas (O
2) can be toxic at elevated partial pressures, leading to convulsions and other health problems.[j] Oxygen toxicity usually begins to occur at partial pressures more than 50 kilopascals (kPa), equal to about 50% oxygen composition at standard pressure or 2.5 times the normal sea-level O
2 partial pressure of about 21 kPa.
Oxygen gas (O two) can be toxic at elevated partial pressures, leading to convulsions and other health problems.[j] Oxygen toxicity usually begins to occur at partial pressures more than fifty kilopascals (kPa), equal to about fifty percent oxygen composition at standard pressure or two point five times the normal sea-level O two partial pressure of about twenty-one kPa.
To what is fifty kilopascals equal?