VERY ULTRAVIOLET vs. common CORONA DISCHARGE
VUV Ozone Generator	Corona Discharge Ozone Generator
Constant ozone output, predictable water quality	Erratic ozone output, unpredictable water quality
Low voltage 50 volt arc	High voltage 10,000 volt arc, hazardous
Operable with partial system failure, helps prevent down time	Inoperable with partial system failure, increases probability of down time
Lower concentration per volume of air, more readily absorbed into water	Higher concentration per volume of air, requires contact chamber and off-gas destruction chamber to be effective and safe
Multiple injection points possible	Single injection points only
Can be operated without circulation system	Operates only with circulation system, requires filtration run to inject ozone
Pure ozone production, free of byproducts	Produces nitric acid in generator and pool water, potential damage to equipment
No electrical noise	Generates electromagnetic radiation, may disturb radio/TV reception
Replaceable lamps / compressor	Replaceable corona element, dryer, etc.
Much lower failure rate than any corona discharge ozone system	Higher failure rate due to more complicated equipment and higher voltage
Prozone has only ozone system UL listed as a pool product	All other ozone systems are UL listed as appliances to be kept a certain distance from the pool water.
This comparison assumes the corona discharge ozone generator is the common type used on small pools.  It has no oxygen concentrator UV systems do not require oxygen concentrators or air dryers to get consistent and clean ozone.