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New Peroxide and Ozone Vapor Disinfectant

01/09/2012 10:03 PM

A breakthrough in hospital operating room disinfection is being explored and developed (patented) by a Queen's University research department.The process involves the use of hydrogen peroxide vapor and ozone. The chemistry will release hydroxl radicals that are very short lived in the environment. These hydroxl radicals are the most powerful of all the disinfectants. In addition there is the formation of trioxidane with a half life of about 16 minutes that will give enough persistent residual disinfection to even kill bedbugs.

The process has enormous potential to help hospitals to counteract the effects of the most resistant and persistent microorganisms that cause grief for all potential patients and visitors.The potential goes far beyond the disinfection of hospital rooms but could be applied to hotel rooms and almost anywhere you can isolate a room. I have had some experience using peroxide vapor with sprays in grocery store produce departments. The grocers still claim good results after 5 years. The good thing is there are no toxic residuals. I was thinking that it may be a good system to introduce to restaurants and especially to treat and rinse salads before the diner eats it. This is provided for CR4 information. I welcome comments.

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#1

Re: New Peroxide and Ozone Vapor Disinfectant

01/09/2012 10:46 PM

Wow, that sounds great...Now if we could just get everybody to dress like this...

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#2
In reply to #1

Re: New Peroxide and Ozone Vapor Disinfectant

01/10/2012 10:56 AM

So that is what they look like!

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#3

Re: New Peroxide and Ozone Vapor Disinfectant

01/10/2012 10:56 AM

Wow! Where can I buy a dozen of these?

a joe in Texas

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#4

Re: New Peroxide and Ozone Vapor Disinfectant

01/11/2012 9:41 AM

This type of sterilizing technique has been available and in use at least 5 years back now here in U.S. I've dealt with Sterrad ASP(J&J) the OEM for parts, repairs and any preventive maintenance related issues for this plasma utilizing units.

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#5
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Re: New Peroxide and Ozone Vapor Disinfectant

01/11/2012 10:51 AM

It is similar to the Glosair mistifiers but does add the component of ozone to get residual disinfection. I have used peroxone and peroxide in environmental ground water cleanups but had not heard of something similar in confined ares using mists. My Company has used peroxide mists in the grocery produce department but we did not use ozone. Our mists were timed (night only) and only used <1% peroxide. No residual was available with this method. The advantage of no residual were to eliminate consumption of anything adverse. The advantage with residual components (using ozone) with a short half life would be to eliminate the eukaryote organisms. That means all things like fungi, bacteria, molds, and even small bugs. The problematic C. difficile and MRSA can be controlled in large rooms. These seem to be the most prominent problems current to hospital environments. I like the mistifiers for a lot of other reasons outside of hospitals. There seems to be a big interest from some hotel chain and I believe they are interested to reduce bedbug issues. The mistifier offers them something to advertize and that may be part of the needed public optics. I smell an opportunity but am too old to start a new business.

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#6

Re: New Peroxide and Ozone Vapor Disinfectant

01/14/2012 12:35 PM

Used to work in the medelectronics field. How did they overcome the fire/explosion problem, or is the life so short as to not be a problem?

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#7
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Re: New Peroxide and Ozone Vapor Disinfectant

01/15/2012 4:15 PM

Personally I would like every minute of life available, provided I am healthy. There is no auto ignition of peroxide when it is at a 5% solution and ozone is a fraction of mg/L. I have manufactured ozone to be used with peroxide at low concentrations. The only time any one got "burned" was if they were mixing it from a concentrate and diluting to low percent and didn't wear the protective gear provided. If you got 35% on your hands it would itch and turn your skin white for about 20 minutes then just go away. Peroxide is a powerful oxidizer and should always be handled with care.

I think for peroxide to auto ignite it needs to be around 55%. I would not buy it greater than 35%. Peroxide will add oxygen to a fire if say, a warehouse with peroxide in it caught fire. But not by itself at the low concentration. It can be purchased at much lower concentaration and I would suspect whoever markets the peroxide/ozone mistifiers will sell pre-measured concentrations of 1 to 5 %. And yes you can get very high concentration of peroxide that must be handled with extreme care. I think rocket fuel is around 90% but could be wrong.

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#8
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Re: New Peroxide and Ozone Vapor Disinfectant

01/15/2012 4:52 PM

Kevin:

Thank you for the response. Chlorine in the form of refrigerants have claimed to cause to ozone depletion. (I'm not going into the legitimacy of said claims). I don't know if the chlorine in the form of bleach can be a cause, but I wonder why peroxide has never caught on as a laundry bleaching agent. Is it cost, shelf life or some other reason. As for water treatment and swimming pools, the shelf life once exposed to the elements precludes those areas.

Oh, and I wasn't referring to auto ignition, I was referring to the possible increased flammability of ozone vs Oxygen, in the operating theater. The problem was the the combination of anesthetics and Oxygen. All the electronics had to certified as ignition safe, this included special power outlets and grounding scenarios. This was long ago and far away, maybe it has changed.

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#9
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Re: New Peroxide and Ozone Vapor Disinfectant

01/15/2012 5:50 PM

Chlorine and ozone have a definite chemistry. And chlorine will destroy ozone at a rate of 1:25 or 1 part chlorine destroys 25 parts ozone.I have forgotten some of this chemistry and am too lazy to look it up. But there is a chain reaction that keeps destroying the ozone. That was the reason it was removed from refrigerants and the careless handling.

Peroxide is definitely used in making of all sorts of products and laundry bleach is but one. These types are often recommended for loading washing machines. It is used as sodium percarbonate and you see many brand names; Oxypure, Tide, All, etc. These products are often just regular detergents but with added sodium percarbonate at 5% or so. It is very easy to make your own detergent at very low cost. All you need is some sodium percarbonate (about 31 % available peroxide) mixed with soda ash. I would add some to my dishwashing soap to assure disinfection of the dishes and much better cleaning. There are some good websites with DIY recipes.

Sorry I just don't know enough about what is in the operating rooms but I assume that is accounted for in the research. The lead researcher is a surgeon.

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