Do Rebreathers Prevent Decompression Sickness?

Question by kazue teresa galgo: Is decompression sickness still a thing in CCR?

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@timpell49
#AskMark Mark great video love your content I recently had my cylinder hydro tested it was filled with air how long can you keep the air in the cylinder before you use it .Also dive shop can drain the air and fill with nitrox?
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@timpell49
#AskMark Mark great video love your content I recently had my cylinder hydro tested it was filled with air how long can you keep the air in the cylinder before you use it .Also dive shop can drain the air and fill with nitrox?
#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

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YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS41ODI2RjhGOTVBODI2NDE5

How Long Can You Keep Air in a Cylinder? #AskMark #scubadiving

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00:00 Introduction
01:35 Scuba.com Ad
02:35 Duikvaker
03:15 EUDI
04:23 DRT
05:04 GO Diving Show UK
06:24 ADEX OZTek
07:06 Mediterranean
07:34 ADEX
08:21 TDEX
08:51 Scuba Show
09:36 MIDE
10:06 GO Diving ANZ
11:09 Diving Talks
11:58 DEMA

Full List of Dive Shows with Links:
https://divernet.com/scuba-diving/your-worldwide-dive-show-guide-for-2025/

JANUARY 18-26: Boot Düsseldorf (International Boat Show)
FEBRUARY 1-2: Duikvaker
FEBRUARY 21-23: European Dive Show (EUDI)
FEBRUARY 21-23: Diving Resort Travel (DRT) Show, Malaysia
MARCH 1-2: GO Diving Show (The UK Dive Show)
MARCH 15-16: ADEX Ocean Festival / OZTek Australia
MARCH 28-30: Mediterranean Diving Show
APRIL 4-6: Asia Dive Expo (ADEX)
MAY 22-25: Thailand Dive Expo (TDEX)
MAY 31 – JUNE 1: Scuba Show
JUNE 13-15: Malaysia International Dive Expo (MIDE)
SEPTEMBER 6-7: GO Diving ANZ Show
OCTOBER 17-19: Diving Talks
NOVEMBER 11-14: DEMA Show

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The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.
00:00 Introduction
01:35 Scuba.com Ad
02:35 Duikvaker
03:15 EUDI
04:23 DRT
05:04 GO Diving Show UK
06:24 ADEX OZTek
07:06 Mediterranean
07:34 ADEX
08:21 TDEX
08:51 Scuba Show
09:36 MIDE
10:06 GO Diving ANZ
11:09 Diving Talks
11:58 DEMA

YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS43OTNDNTk0OUNGMDA1MUNG

Upcoming Dive Shows in 2025 #scubadiving #diveshow

US diver Barrington Scott has set a verified Guinness World Record for the fastest time to scuba dive across all seven continents.Cartagena City Council says it is preparing to tighten access to the Cueva del Agua (Water Cave) system in southern Spain, following the death of a 37-year-old female diver there on 18 January. And an underwater habitat builder has just extended the record for longest time spent submerged. 

https://divernet.com/scuba-news/scuba-dash-across-7-continents-brings-world-record/
https://divernet.com/scuba-news/health-safety/spanish-cave-divers-death-prompts-calls-for-controls/ 
https://www.kentucky.com/news/nation-world/national/article299289964.html
https://divernet.com/scuba-news/pod-builder-completes-120-days-under-sea/

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OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
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We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.

US diver Barrington Scott has set a verified Guinness World Record for the fastest time to scuba dive across all seven continents.Cartagena City Council says it is preparing to tighten access to the Cueva del Agua (Water Cave) system in southern Spain, following the death of a 37-year-old female diver there on 18 January. And an underwater habitat builder has just extended the record for longest time spent submerged.

https://divernet.com/scuba-news/scuba-dash-across-7-continents-brings-world-record/
https://divernet.com/scuba-news/health-safety/spanish-cave-divers-death-prompts-calls-for-controls/
https://www.kentucky.com/news/nation-world/national/article299289964.html
https://divernet.com/scuba-news/pod-builder-completes-120-days-under-sea/

#scuba #scubadiving #scubadiver

Become a fan: https://www.scubadivermag.com/join

GEAR PURCHASES: https://www.scubadivermag.com/affiliate/dive-gear

-----------------------------------------------------------------------------------
OUR WEBSITES

Website: https://www.scubadivermag.com ➡️ Scuba Diving, Underwater Photography, Hints & Advice, Scuba Gear Reviews
Website: https://www.divernet.com ➡️ Scuba News, Underwater Photography, Hints & Advice, Travel Reports
Website: https://www.godivingshow.com ➡️ The Only Dive Show in the United Kingdom
Website: https://www.rorkmedia.com ➡️ For advertising within our brands
-----------------------------------------------------------------------------------
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FACEBOOK: https://www.facebook.com/scubadivermag
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We partner with https://www.scuba.com and https://www.mikesdivestore.com for all your gear essentials. Consider using the affiliate link above to support the channel.

The information in this video is not intended nor implied to be a substitute for professional SCUBA Training or recommendations for every manufacturer. All content, including text, graphics, images, and information, contained in this video is for general information purposes only and does not replace training from a qualified Dive Instructor or specific requirements from equipment manufacturers.

YouTube Video UEw2X2VCMS1KYWdWbXFQSGV1YW84WVRHb2pFNkl3WlRSZS4yNkZBOTQyMkYxQkQyMzc2

Spanish Cave Closed After Fatality #scuba #podcast #news

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WhaleShark
WhaleShark
1 year ago

Clearest explanation of a rebreather I’ve heard :)

HashTagRealName
HashTagRealName
1 year ago

Some might take issues with the generalisation, but I think the generalisation is helpful for putting people on the right track overall.

Only thing I’d bother correcting is that the diluent is not really there just to pack out space in the gas – it’s biggest job is to dilute the O2 to being down the Partial Pressure of Oxygen (PPO2) because at depth (as little as just 6m) oxygen becomes toxic to your lungs and brain (in particular).

Alistair Allen
Alistair Allen
1 year ago

Frightening!
You should (a) understand your subject and (b) have a script so you don’t look like you’re making it up.

If you want to know about CCR do a course.

Ansgar Breitvogel
Ansgar Breitvogel
1 year ago

Great Channel. Thanks, Mark, I am German but I love your excellent explanations!

Yousif Jawhar
Yousif Jawhar
1 year ago

Open circuit: The bubbly SCUBA.
Can’t find a better definition!

DTT
DTT
1 year ago

is the cost of a ccr coming down.
can you ever see it being main stream in the near future.
are the companies attempting to make it main stream

Gnisha
Gnisha
1 year ago

#AskMark With the advantages of battery technology, is a tank lamp still superior to stand alone units like the Apeks Luna ADV in shorther than 2h dives?
What is their reliability in practive? One can assume that a sealed unit should be better but my personal experiance was exactly the opposite.

Scuba Diver Magazine
Scuba Diver Magazine
Reply to  Gnisha
1 year ago

I’ve had a factory sealed torch fail before and it’s a lot easier to get a replacement when there’s little chance you flooded the torch. That being said, I mostly dive sealed, rechargeable torches and it’s only happened once with me.

More and more divers are favoring stand-alone torches to avoid the cable getting in the way. And unless you use them at full power for the entire dive, torches like the Luna ADV have plenty of battery for a 2hr dive plus extra for emergencies.

Rechargeable batteries do wear out over time so, eventually it will need replacing. That’s their main downside.

_iOn_
_iOn_
1 year ago

#askmark Hi Mark, I’m considering investing in my own set of regulators and i’m toying with the idea of customizing it for a long hose primary donate setup. The question i have is, would that be hard to route if i do not have my own bcd/bp-wing ? i’m not keen on investing in those now and i’ll probably travel with the regs only for a while. Thanks!

Scuba Diver Magazine
Scuba Diver Magazine
Reply to  _iOn_
1 year ago

Yes, you can still use a long hose primary with a rented jacket BCD. The hose routes down behind your right shoulder and under your arm. Then bend the hose and tuck it under the waistband or into the Octo-holder and the rest goes over your left shoulder and around your neck.

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