Ozone Shock Levels and Ozone Treatments

Lifecycle of OzoneThere are a number of common questions about ozone and how ozone is applied for an odor problem, for sanitizing, and mold treatment.  We also field questions about OZONE SHOCK and types of generators needed for proper ozone treatments.  Of course, much of the confusion comes from the Internet gurus who are actually boasting about their ozone generators for sale.  So, the early advice is to turn off the volume, rhetoric, and brag; and deal with the things we know about professional ozone application.  To do this, we strongly suggest taking the Certified Ozone Technician course from the National Ozone Association.  This will educate you better than trying to decipher truth from fiction on the Internet.

In the next several years, ozone businesses will flourish, and there are reasons for this expectation.  COVID-19 has driven interest in sanitizing to a huge level of demand for serious solutions.  And, ozone is a well-known, non-chemical sanitizer.

Ozone is produced in nature during lightning storms or by the sun converting oxygen to ozone in our upper atmosphere.  Ozone is a natural, non-chemical "Solution to Pollution" that works wonderfully well.  It is 3000 times more effective at sanitizing in water than chlorine.  Yet, it is just a three oxygen atom combination instead of the normal two-atom molecules that makes our breathable oxygen.  Ozone is, however, reactive.  That third oxygen atom is very willing to detach and re-attach to all types of offending odors, germs, mold, and pollution.  This is partially why you hear of high ozone when there are high levels of air pollution.  Ozone is at work trying to break down the pollution.  

So, how long will ozone last?  We say about 20-30 minutes depending on temperature and humidity.  See the attached chart.  As the temperature goes up, ozone reverts more quickly.  But, even at the best of normal temperatures, ozone does not last long before reverting back to O2.  This is kind of important for a number of reasons.  Ozone cannot be bottled or put in cans for retails sales.  It is a consumable that is delivered on the spot.  This is why the large commercial manufacturers will never promote is as something good.  In fact, we can expect them to denigrate ozone and call it dangerous.  But really, is it more dangerous than bleach that is so widely promoted?

The next area of great confusion is Ozone Shock.  What is it, and can all these over-promoted ozone generators reach the ozone shock level?  Many can't regardless of their advertising hype.  However, many agree that reaching at least 6 PPM is the shock level goal for a treatment.  Small machines my reach 0.5, 1, or maybe 2 PPM which is helpful; but that is like cleaning a bathroom with a toothbrush.  Reaching 6 PPM requires a professional ozone generator.  

The EPA suggests that mold kill may take as high as a 10 PPM treatment.  Imagine some of the small output units even getting above 2 PPM but claiming they can effectively kill mold.

The formula for reaching a high PPM included the milligram ozone output compared to the cubic feet of the room, temperature, humidity, and even air loss.  So, it is hard to be exact about reaching the right PPM level.  However, it is reported that 30-60 minutes of serious ozone treatment is enough to kill most bacterial and virus threats.

What about the ozone smell left behind?  Remember, ozone oxidizes pollution and organic threats.  The oxidation process may happen even though the ozone is gone.  What is left behind is non-harmful, and means that the ozone has done the job.  For quicker treatments, a liquid oxidizine treatment by fogging Decon Five throuhgout the area is an EPA registered sanitizer that has a similar effect as ozone.