Our old site had a useful links page that the internet seems to miss, so here it is again in all its glory!
Why you should avoid decongestants before diving (Hint: They can cause seizures)
Scubaboard is the most active community of divers. Lots of good info (and some that’s not so good)!
Calculating Scuba Cylinder Capacities
Maximum Operating Depth Calculator
![Nitrox or EANX maximum operating depth (MOD) chart for calculating safe and contingency partial pressures of oxygen in meters of seawater.](https://i0.wp.com/vikingdives.com/wp-content/uploads/2024/01/mod-table-nitrox-meters.png?resize=548%2C752&ssl=1)
![eanx-mod-table Nitrox or EANX maximum operating depth (MOD) chart for calculating safe and contingency partial pressures of oxygen in feet of seawater.](https://i0.wp.com/vikingdives.com/wp-content/uploads/2023/01/eanx-mod-table.jpg?resize=522%2C801&ssl=1)