What is the significance of “PO2 Limit” for recreational divers?

The significance of the "PO2 Limit" for recreational divers primarily relates to the maximum partial pressure of oxygen that is considered safe for divers to avoid toxic effects. As divers use enriched air nitrox, which contains a higher percentage of oxygen than normal air, understanding and adhering to the PO2 limit is crucial for safe diving practices. Generally, the acceptable limit for the partial pressure of oxygen is established at around 1.4 ATA (atmospheres absolute) for recreational diving. Exceeding this limit can increase the risk of oxygen toxicity, which can lead to serious health issues including seizures.

Monitoring PO2 is critical for divers to avoid these risks while still benefiting from the advantages that nitrox offers, such as reduced nitrogen absorption and longer bottom times. принятие этого предела является ключевым элементом готовности к нырянию и безопасного планирования погружений.