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Ozone machine basics
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James Offline
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Ozone machine basics
There are three ways to generate ozone: Ultraviolet (UV), hot corona and cold corona. Here are the pros and cons to each:

UV- Pros: The least expensive of the units averaging around $300. They will form ozone and higher allotropes of oxygen known as cascading ozone or polyatomic oxygen molecules consisting of 4 or more oxygen atoms linked together. Cons: These units mimic sunlight, which means they also form nitrogen and sulfur oxides in the presence of air, which form the corresponding acids when reacted with water. The tubes deteriorate with time reducing output, and they are very difficult to regulate their output. They ARE NOT recommended for internal therapy.

Hot corona- Pros: A mid range priced machine, averaging $500-900. These machines are stronger than UV, and easily regulated by adjusting voltage input. Cons: They also form nitrogen and sulfur oxides in the presence of air. They only form O3, which is not as strong as the higher allotropes. They ARE NOT recommended for internal therapy.

Cold corona- Pros: Can be regulated by adjusting voltage input and does not form acidic precursors in the presence of air. Forms O3 and the higher allotropes. This is the type of ozone generator recommended by German doctors for therapy. Cons: The most expensive units and hardest to find. Average cost for these units is $1500-15,000. Cold corona units utilizing gas tubes as electrodes instead of metal are sometimes referred to as "cold plasma" units.

One of the biggest problems with trying to find a cold corona unit is that many of the machines being sold as "cold corona" units are actually hot corona units. The confusion comes from the tube design. In general a hot corona design has one dielectric between metal electrodes. Cold corona tubes use two dielectrics preventing exposure of the gas to the metal of either of the electrodes. The glass spreads out the electrical energy along the length of the electrodes preventing excessive arcing in one spot.

The problem is that all this is based on the older "pig iron" high voltage transformers that operate at 60 hertz. With the introduction of the newer high frequency solid state transformers all of the above gets thrown out. The higher frequency drops the resistance of the dielectrics making the cold corona tube design behave like a hot corona tube.

Manufacturers use these transformers because they are lighter, smaller and allow for wider spacing between the electrodes. Unless you know what you are looking at it is hard to tell if a "cold corona" device is really a cold corona device.

http://www.MountainMistBotanicals.com
06-18-2012 02:34 AM
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