advanced nitrox

I'm doing IANTD Advanced Nitrox (in sidemount). Today I had to do a no mask, no reg swim for 15m. I failed and didn't even make it halfway without reaching for my regulator, at which point I realised I'd dropped my mask and nearly panicked. Not great :( My question is, how long should this swim...

Hey Everyone! I recently did my TDI Intro to Tech in the Gilis and I'm planning to visit Thailand in Dec '22 to do a few tech courses - TDI AN+Helitrox, followed by TDI Trimix. I believe it will take me 8-10 days to work through both of these courses, so am planning for a 12-14 day trip. The...

Deep Diving Bad Decision... Avoided Continuing this week's theme of scuba gasses, deep diving, narcosis, and dangers of CO2, here is a story of when I was tempted to make a bad decision based on the high cost of the dive. Avoid danger, especially at depth, and live to dive another day.

Hi Everyone! I have been wanting to start the TDI advanced nitrox and Deco procedure courses and I don't intend to use trimix . One of the biggest reason I haven't really started was the upfront cost of the two courses and the two Perdix I had to buy. Now I see the Peregrine allows 3 gases and...

In February I went to Protec and completed both Sidemount and Intro to Cave, but before I return next January for Full Cave I would like to get through AN/DP. Does anyone here have recommendations for a solid instructor here in Washington State who knows sidemount and can teach at a tech level...

I'm working on the TDI Advanced Nitrox manual in Chapter 3, Pulmonary Oxygen Exposure. I'm having some trouble understanding what a portion of the equation is doing in the calculation. Note: I am not having trouble plugging variables into the equation to calculate an answer. I want to...

Do you have to do "practical" exercise and dives to complete this course or can it be done online like PAD EANx?

Hello Pacific Northwest Divers! If anyone has considered diving a little deeper and staying a little longer, TDI's Advanced Nitrox and Decompression Procedures courses may be what you are looking for. These two courses are often the first two the diver will take when wanting to begin technical...

My buddy and I just completed our Cavern and Intro to Cave courses, we're planning to wait a good while to acquire the cave diving experience needed before we go on to full cave. <= This part I'm good with, but we're hungry to learn more. We talked about taking an Advanced Nitrox and Deco course...