Equipment > All Equipment discussion

Closed or Open Circuit Breathing Apparatus(CCBA/SCBA)

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thrill seeker:
Hi All

I am a newbie :-D to this forum and would like to take this opportunity to thank everyone for posting. There is lots of valuable information here.

I have a few questions.
1. Would firefighters uses closed circuit breathing apparatus?
2. What is the biggest challenge with the current breathing equipment?
3. Would communication devices fitted be useful?
4. Issues with the full face mask?

Any relevant information about breathing apparatus would be appreciated.

If this topic has been discussed i do apologies for a repeat.

Kind Regards
Thrill seeker

6739264:

--- Quote from: thrill seeker on March 09, 2010, 04:33:57 PM ---I have a few questions.
1. Would firefighters uses closed circuit breathing apparatus?
2. What is the biggest challenge with the current breathing equipment?
3. Would communication devices fitted be useful?
4. Issues with the full face mask?

--- End quote ---

Howdy,

1. No, unless there were specific risks in the response area that required them (eg: mines / long tunnels). Even then, dual cylinders on an open circuit BA would generally do the job.

2. Biggest challenge with SACFS CABA? Cylinder weight/steel backplate

3. Yes

4. Would be nice to get a facepiece with a larger veiwable area. Although as in No. 2 they are available, jut not purchased by SACFS.

Yay!

thrill seeker:
A few thoughts on
Open circuit 21% o2 of which +/-80% is wasted(Volume).Limited to 60 minutes
Closed circuit 100% o2 100% reusable.4hr rating

Two scenario's

1.Fireman A enters an unknown environment with open circuit,heart rate has increased,breahing rate has increased,Co2 increased.Increase CO2 due to breathing 21% o2, his ability to perform is negatively effected due to co2 build up and higher work rate.

2. Fireman B enter an unkown enviroment wih closed circuit,heart rate has increased,breathing rate has increased,co2 increase. He is breathing 100
% the co2 build up would not be as great as the unit has scrubber/Sodalime to extract the co2.His ability to perform would mirror his training.

Why breath close circuit?

1. Easier Breathing- High volume less resistance
2. Faster deployment -Scrubber and cooling system.
3.Greater safety and comfort -Light weight

my view is that open circuit should not be allowed. it old technology

I think scott facemask is comming out with comms

my 2cents..... thanks for the reply

Regards
Thrillseeker

crashndash:
care to put up your company details and a price too?  :evil:

Pipster:
Wouldn't most CFS people have keeled over & died of heat stress from wearing PBI gold for 4 hours, if they spent that long in a closed circuit BA set...  :evil:

Pip

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