Re: Has anyone used the Emox O2 Delivery System?

May 19, 2007

Has anyone used this system? We shy away from carrying compressed O2 on PSD

teams here in Iraq. This product seems to be an answer and a substitution for

compressed tanks in the field. Would appreciate any feedback from the group.

http://www.emox.co.za

Warm regards,

Mike

May 19, 2007

Have never used it but it looks like a great option to compressed

gas. Let me know what you find out.

>

> Has anyone used this system? We shy away from carrying compressed

O2 on PSD teams here in Iraq. This product seems to be an answer and

a substitution for compressed tanks in the field. Would appreciate

any feedback from the group.

>

> http://www.emox.co.za

>

> Warm regards,

>

> Mike

>

May 19, 2007

Sounds very similar to Aviox, used by flight crews.

LT

wrote:

> Have never used it but it looks like a great option to compressed

> gas. Let me know what you find out.

>

>> Has anyone used this system? We shy away from carrying compressed

> O2 on PSD teams here in Iraq. This product seems to be an answer and

> a substitution for compressed tanks in the field. Would appreciate

> any feedback from the group.

>>

>> http://www.emox.co.za

>>

>> Warm regards,

>>

>> Mike

>>

May 19, 2007

Hey Guys,

At last I can give some feedback. I have been waiting close on two years to

actually be able to give feed back and not asking for feedback.

I have had the opportunity of seeing this stuff in action, both in demo and

practice. Works very well and I for one bought it and used do keep it with

my kit in my car. Sadly the car was stolen by the courts and given to my ex.

Regards

From:

[mailto: ] On Behalf Of Larry Torrey

Sent: 20 May 2007 05:22 AM

Subject: Re: Has anyone used the Emox O2 Delivery

System?

Sounds very similar to Aviox, used by flight crews.

LT

wrote:

> Have never used it but it looks like a great option to compressed

> gas. Let me know what you find out.

>

>> Has anyone used this system? We shy away from carrying compressed

> O2 on PSD teams here in Iraq. This product seems to be an answer and

> a substitution for compressed tanks in the field. Would appreciate

> any feedback from the group.

>>

>> http://www.emox.co.za

>>

>> Warm regards,

>>

>> Mike

>>

May 20, 2007

Mike,

I've used a similar system once after a diving accident. It was better than

nothing but the flow rate was low - guesstimate 2-3l/pm. I've been through

the website and it doesn't seem to mention the flow rate at all. Don't

expect 15l/pm and bear in mind that if you are carrying it around with the

humidifier chamber pre-filled, you will need to empty and clean it every

24hrs or so in the temperatures you will be subjecting it to at the moment

to stop bacterial proliferation.

Cheers,

Tom

From: " " <txladymedic@...>

Reply-

Subject: Re: Has anyone used the Emox O2 Delivery

System?

Date: Sat, 19 May 2007 19:27:30 -0000

Have never used it but it looks like a great option to compressed

gas. Let me know what you find out.

>

> Has anyone used this system? We shy away from carrying compressed

O2 on PSD teams here in Iraq. This product seems to be an answer and

a substitution for compressed tanks in the field. Would appreciate

any feedback from the group.

>

> http://www.emox.co.za

>

> Warm regards,

>

> Mike

>

May 20, 2007

Yes, saw that Tom.. The brochure does refer to 90 + % concentrations but nothing

about flow rates, and, it is promoted to use without a regulator which is yet

another question.

Still better than not having anything or having the risks of compressed tanks

in the high profile vehicles and the costs are minimim compared to most medical

products.

I think we will purchase it and give it a trial and let everyone know how it

goes.

Mike

May 21, 2007

Frequently asked questions

How is the Oxygen produced ?

The reaction that takes place in water when the two powders are mixed is as

follows:

Mn catalyst

(black powder)

Na2CO3.1.5H2ONa2CO3+1.5H20+0.75O2

sodium percarbonate

(the white powder)H20sodium carbonate water OXYGEN

How pure is the Oxygen produced ?

99.7% pure oxygen (remainder 0.3% is moisture). View laboratory test report

What is left in the bottle after the reaction (the residue) ?

Sodium carbonate, water and the manganese catalyst (which, by definition, is

unchanged in the reaction)

Is it safe to dispose of the residue in the environment ?

Yes, the Sodium carbonate is a naturally occurring salt and the manganese

compound occurs naturally in the environment as a mineral. It is therefore

environmentally acceptable and is safe to dispose of the residue.

Are the two chemical powders poisonous ?

No. If the chemicals come into contact with the skin or eyes rinse the affected

area with cool water. If irritation persists medical advice should be sought. In

the event of accidental spillage of the powders rinse the area with water to

reduce the white powder (sodium percarbonate) to a harmless substance.

What is the flow rate of the Oxygen produced ?

The flow rate increases as the reaction proceeds with time as below:

Time (min)Flow rate (litres/min)Time (min)Flow rate (litres/min)

0085.5

1496

24107.5

341110

441211.5

54.51312.5

64.51410

75151

Mean flow rate = 6.3 litres/min

Total oxygen produced = approx. 94 litres

Refer to instructions on the green cylinder – in cold conditions it is suggested

you initially swirl the green cylinder to accelerate the chemical reaction.

What happens if I accidentally add two bottles of the chemicals to the cylinder

?

An over-reaction will occur. Whilst it not dangerous, the increased flow of

oxygen will overwhelm the water trap and the device will not function as

designed. Our operational and filling instructions must always be adhered to.

What happens if I accidentally add double the amount of water to the cylinder ?

A slower flow rate will occur

What happens if I ‘kink’ the tubing to the face mask during the reaction,

thereby blocking the flow of oxygen ?

The oxygen production will continue in the cylinder regardless and the pressure

will therefore increase within the cylinder. The face mask tubing is a simple

push fit onto the cylinder top and will eventually pop off safely once the

pressure has reached a certain limit. It is safe to continue using the system

after reconnecting the tubing.

What happens if I invert or tilt the cylinder during the reaction ?

The contents of the green cylinder will spew out of the cap nozzle. The cylinder

must be maintained in an upright (or close to upright) position during use.

Although there is no danger if the cylinder is knocked over accidentally the

contents may be hot and therefore due care should be taken. The cylinder should

always be kept in the carry bag when in use.

Can they be carried on an aircraft, have the airlines approved it to be carried

as hand luggage ?

The contents have been certified by South African Airways as ‘non-hazardous’ and

can therefore be carried on their aircraft. We are submitting the chemicals to

the other major airlines to obtain similar clearance letters.

How hot does the cylinder get during the reaction ?

As the reaction proceeds the green cylinder will get progressively warmer (it is

an exothermic reaction). It may reach a maximum temperature of 80 deg

centigrade. Care should be taken in handling the residue fluid as it gets hot.

Can I use salt water instead of tap water ?

Yes you can use sea water or river water. In fact you can use any water as long

as it is not contaminated. It will still produce 99.7% oxygen

What does the water trap on top of the green cylinder do ?

It acts as a humidifier and filter. It also provides a visual and audible

indicator that oxygen is being generated.

How long can I store the chemicals ?

Provided the bottles are unopened the shelf life is indefinite. Long term

storage should be below 30 degs centigrade. view laboratory test report

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