Despite ozones "discovery" in 1840, little is known or written about this mystery gas. Lets start with natural ozone in the atmosphere. The "ozonesphere" is a protective layer of ozone 6 to 30 miles above the earths surface that contains approximately 10 ppm (parts per million) of ozone. This layer of ozone protects the earths surface from harmful ultraviolet (UV) light radiation and prevents heat loss. The layer is created by the suns UV waves bombarding oxygen (O2) molecules. This bombardment causes an oxygen molecule to split, allowing the "stray" oxygen atom to attach itself to another oxygen molecule, thus forming ozone, or O3. The third atom is loosely held to the new ozone molecule which gives it a 20 to 100 hour half-life. (Every 20 to 100 hours, one-half reverts to O2, or oxygen).
Nature produces ozone in other ways, too. The electrical discharge of lightning creates ozone, which is why the air smells so fresh and clean after a thunderstorm. The ozone has oxidized the pollutants in the air. Many people even hang their laundry out to dry after a thunderstorm to capture the fresh scent.
One of the major benefits of ozone is its tremendous ability to oxidize substances: it is thousands of times faster than chlorine and disinfects three to four times more efficiently. Yet like most things in nature, there is danger in excess.
Ozones third atom, the loosely held or "unstable" atom, has a strong tendency to break away and attach itself to other substances. While the original ozone molecule reverts back to O2, the loose molecule attaches itself to a new host substance and oxidizes it. It sounds like the perfect scenario for air-pollution cleanup. The problem is ozone wants to oxidize everything. Accordingly, excessive exposure can irritate peoples lungs, eyes and skin.
Just as fire oxidizes organic matter and changes
one substance to another substance, ozone will destroy a molecule through oxidation.
Certainly, there is no doubt concerning its ability to oxidize organic substances,
sterilize air and destroy toxic fumes, bacteria, algae, fungus, mildew, mold
and odor. The use of ozone to purify air is effective when done properly.
Decades ago, scientists discovered how to artificially produce ozone through electrical discharge. The method has been used in Europe for water purification since the early 1900s and has been rapidly gaining popularity in municipal water plants in the United States.
In the 1970s, an inexpensive and reliable method of making ozone was discovered utilizing a specific wave of UV light. Ozone generated from UV light is just as effective as ozone produced from electrical discharge or naturally occurring ozone. This production method is preferred for many applications based on cost, reliability, maintenance and quantity.
Industries have been using ozone successfully for many years in a wide range of applications, including food processing and preservation, smoke stack emission control, odor control, smoke damage restoration, beverage processing, swimming pools, algae removal in ponds and spa purification. In recent years, ozones benefits also have been realized in the wastewater treatment business.
In high contamination environments, a total program of training with particular emphasis on safety must be utilized. Evacuate the area to be odorized or sanitized first, then ozonate the area with a sufficient dose to destroy all the odor or chemical causing molecules (usually 1 ppm), and ventilate the area before reoccupying.
Ozone produced by Corona Discharge (CD) has a higher concentration by weight than ozone produced by Ultraviolet Light (UV). However, air treatment usually requires large volumes of low ozone concentration (1-2 ppm) to effectively treat air.
CD produce ozone requires extra energy and effort to compress, dry, produce and then dilute the produced ozone. In comparison, UV produced ozone generally needs no air pretreatment and is produced at the ideal concentrations to be used to destroy airborne odors and VOCs. Accordingly, UV ozone generators are preferred for ozone air treatment.
IMPORTANT NOTE: For high contamination areas that do not have people or animals, select the Air Oasis Ozone Generator with the option of NO catalyst for one or both of the lamps to produce more ozone. In areas like smoky bars or kennels where the contaminate is high, yet there are people or animals in the room, the Air Oasis Ozone Generator used with the catalyst on both lamps can be safely use while the space is occupied because the contaminates will consume the ozone before it can ever reaches levels that would cause harm.
The Air Oasis Ozone Generator can destroy by oxidation the following airborne odors:
The amount of time necessary to sterilize an area with ozone depends upon the temperature, humidity level and the amount of reactive substances (odors). For effective treatment, it is recommended to turn rooms over at least three times.
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