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Oxygen is treated as a narcotic gas for END related calculations by default. A setting is provided in the in app “Settings” to change this behavior if you prefer to not treat oxygen as narcotic. Trimix Tools will also warn about gases that result in a surface PPO2 that is less than 0.18 bar/ata by default and there is a setting to turn off this warning if that is your preference.
Tap or click on the the bookmark icon to recall a previously saved calculation or to save the details of this calculation for future use.
You can easily make the calculations using Metric or Imperial/US by visiting the in application “Settings” and changing the system to the one desired.
You can easily make the calculations for salt water or fresh water and in Metric or Imperial/US by selecting “Settings” and changing the appropriate settings. You can also adjust some of the warnings offered by the application in the settings tab.