• Many competitor timers do not go past 2 hours, or go for even less time than this!

• For most shock treatment needs, and for professionals in the business of fire restoration, flood restoration, and mold redemption, these timers would not be used as more time is usually needed for larger tasks or thorough bacteria, virus, and mold killing.

Understanding Ozone Depletion

It is a myth that ozone will only be active for a 30 minute period.  Ozone has a "half-life" of 30 minutes, which means, under normal conditions, that 50% of an amount of ozone is usually converted back into oxygen in 30 minutes, and again, 50% of the remaining amount of ozone is usually converted back into oxygen for each subsequent 30 minute period - and so the amount of ozone is being cut in half every 30 minutes.

Ozone is built up in concentration in much the same manner in which it is depleted, however, when performing shock treatments, the first couple 30 minute intervals or so will  actually build the ozone concentration slower than the subsequent 30 minute periods.  This is because the ozone reacts or depletes much more rapidly in the presence of contaminants, such as smoke, mold, bacteria, chemicals, and other impurities.  Larger concentrations of ozone can be achieved over several hours to days if needed for heavily contaminated areas.

So if a competitor claims that ozone will be gone in 30 minutes, or that it is useless to shock treat for more than 30 minutes or an hour, it is now easy to understand this claim is either made from a simple lack of knowledge, or to gain more sales and help sell units with inadequate built-in timers. 

NOTE:
Ozone is depleted much more rapidly in high temperatures, than in low temperatures.  At COLD temperatures, such as freezing, ozone may not be depleted for over 30 Days.  It is important to use ozone in temperatures above 60 degrees Fahrenheit.