How does the use of Nitrox affect dive profiles for repetitive dives?

The use of Nitrox—gas mixes with a higher percentage of oxygen than regular air—affects dive profiles for repetitive dives primarily by allowing for shorter surface intervals or extended bottom times. This occurs because the lower nitrogen content in Nitrox reduces overall nitrogen absorption during dives, resulting in a decreased risk of nitrogen narcosis and decompression sickness.

As divers use Nitrox for repetitive dives, the lower nitrogen levels enable them to spend more time at depth while also shortening the necessary surface intervals between dives. By following the appropriate dive tables or dive computers specific for Nitrox, divers can maximize their dive time on subsequent dives within the same day.

Using Nitrox appropriately allows divers to enjoy the benefits of extended bottom times without significantly increasing their risk of decompression sickness, making it a popular choice for divers engaged in repetitive diving activities.