TDI KISS Air Diluent

Closed-Circuit Rebreather · Near-Silent Diving · Unit-Specific to the KISS

Go quiet. Stay down longer. A closed-circuit rebreather recycles the gas you exhale, scrubbing out the CO2 and adding back oxygen, so you dive near-silent, with almost no bubbles and far more bottom time. This course trains you on the KISS CCR specifically, a reliable, electronically controlled unit, and certifies you to dive it on air diluent to 100 feet on no-decompression dives. You'll master unit build-up, scrubber packing, gas analysis, and emergency procedures. The certification is unit-specific to the KISS. You'll need your own mask, fins, boots, and snorkel; a KISS unit is required, and rental is available at additional cost (call us to confirm before enrolling).

Veterans can put their GI Bill toward their training, and families can use ESA or ClassWallet funds. See if you qualify.

Starting from

$1249.00

Availability: Contact us for booking information

Description
Additional Information

TDI KISS Air Diluent CCR Course

Closed-Circuit Rebreather · Near-Silent Diving · Unit-Specific to the KISS

This is the doorway to rebreather diving. A closed-circuit rebreather recycles the gas you exhale instead of venting it, scrubbing out the carbon dioxide and adding back the oxygen your body used, so you dive near-silent, with almost no bubbles and dramatically more time in the water. This course trains you on the KISS CCR specifically, a mechanically reliable, electronically controlled unit that's well regarded in the technical community. It certifies you to dive the KISS on air diluent to 100 feet on no-decompression dives.

Why divers move to a rebreather

A CCR changes the experience of diving in ways open circuit can't match:

Extended bottom time, since the same gas is recycled throughout the dive
Near-silent operation, with almost no bubbles to disturb marine life
A constant, optimal oxygen level maintained automatically at any depth
Real gas efficiency instead of venting every breath into the water

How a closed-circuit rebreather works

Your exhaled gas is captured instead of vented. It passes through a scrubber canister that removes the carbon dioxide, then the unit injects oxygen to replace what your body consumed and recycles the gas back to you. The electronics hold a constant optimal oxygen partial pressure no matter how deep you go, which is what makes the rebreather so efficient, and why understanding it thoroughly matters.

What you'll learn

The academics build the deep understanding that safe rebreather diving requires.

The history of rebreathers and how open, semi-closed, and closed circuit compare
The mechanics of the KISS CCR specifically
CCR gas physiology: oxygen toxicity, hypoxia, hypercapnia, and CO2 breakthrough
Dive tables, computers, and CCR-specific dive planning

Running the unit

You'll learn to operate and care for the KISS to manufacturer standard.

Build up and break down the KISS CCR
Pack the scrubber canister correctly, every time
Analyze your diluent and oxygen before every dive
Run a full predive checklist, plus post-dive cleaning and maintenance

Emergencies you'll train for

Rebreather safety is about recognizing and responding fast.

A failed oxygen sensor
Loop contamination
Recognizing CO2 breakthrough symptoms
Bailing out to open circuit

Your in-water training

All dives run between 30 and 100 feet, within safe oxygen exposure.

At least two dives deeper than 50 feet
At least one dive deeper than 90 feet
Every dive kept within CNS limits, recommended max 80%
Set point switching, monitoring, bailout, SMB, and more

Important to know before you enroll

This certification is unit-specific to the KISS CCR. Diving a different rebreather model requires separate training on that unit.
The course must be completed within 6 weeks of the start date.
Stay current. If you're inactive on the KISS CCR for more than 6 months after the course, a refresher is required before diving it again.

Who can enroll

You'll need a nitrox foundation and some logged experience.

A TDI Nitrox Diver certification, or equivalent from a TDI-recognized agency
Proof of 20 logged open water dives
Minimum age 18

About the KISS unit

You'll train on a unit built to be trusted.

KISS is a Canadian CCR manufacturer
Known for mechanically reliable, relatively simple units
Electronically controlled and well regarded in the tech community
Your certification is specific to the KISS CCR

✓ What's included

Instruction and your open water CCR training dives
The TDI Air Diluent CCR knowledge materials and planning tools
Full unit operation, maintenance, and emergency training on the KISS
Your unit-specific TDI Air Diluent CCR certification on completion

What to bring

Your own mask, fins, boots, and snorkel (required, we don't rent these)
A KISS CCR unit. Rental is available at additional cost, call us to confirm availability before enrolling, or bring your own
Your TDI Nitrox certification card and proof of 20 logged dives
A swimsuit and a towel

Frequently Asked Questions

What is a closed-circuit rebreather?

It's a diving system that recycles the gas you exhale instead of venting it into the water. The unit removes carbon dioxide through a scrubber, injects oxygen to replace what you used, and recycles the gas back to you. The result is near-silent diving with almost no bubbles and much longer bottom times.

What is a scrubber?

The scrubber is a canister packed with a chemical absorbent that removes carbon dioxide from your exhaled gas before it re-enters the breathing loop. Packing it correctly is critical, improper packing risks CO2 breakthrough, which can cause rapid incapacitation, so the course teaches this carefully.

What are the prerequisites?

You'll need a TDI Nitrox Diver certification or equivalent from a TDI-recognized agency, proof of 20 logged open water dives, and a minimum age of 18.

Do I need my own rebreather?

You'll need a KISS CCR for the course. Rental is available at additional cost, so call us to confirm availability before you enroll. Bringing your own unit is the better option when possible, since you'll be diving that exact configuration on every future dive.

Why is the certification unit-specific?

Rebreathers differ significantly between models, so your training and certification are specific to the KISS CCR. Diving a different rebreather requires separate training on that unit.

How deep does this certify me to dive?

The KISS Air Diluent CCR certification is for no-decompression dives to a maximum of 100 feet. Deeper and decompression diving on a rebreather is covered in more advanced CCR courses.

Let's. Go. Diving.

Ready to go quiet and stay down longer? Call the shop, we'll confirm unit availability and map out your KISS CCR training.

Call the shop (480) 881-4013

A unit-specific TDI Air Diluent CCR certification on the KISS rebreather, for no-decompression dives to 100 feet. Must be completed within 6 weeks of the start date. Prerequisites: TDI Nitrox Diver (or equivalent) and 20 logged dives. Unit rental available at additional cost.

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