Safe oxygen limits

Safe oxygen limits refer to the maximum amount of oxygen that can be safely administered or present in a given environment to prevent health risks. In medical settings, oxygen levels are carefully controlled to avoid tissue damage from too much oxygen (oxygen toxicity), which can affect lungs and other organs. Typically, oxygen therapy stays within a range that meets the patient’s needs without exceeding safe thresholds—often around 21% (room air) to 100%, depending on the condition and duration. Maintaining these limits helps ensure effective treatment while minimizing potential side effects from excessive oxygen exposure.