DEL's Approach to Cold Storage -
Ozone, when used properly, has been proven to control spoilage-causing microorganisms and reduce ethylene levels in cold storage, resulting in improved product quality. To effectively attain these results, the durability and reliability of the ozone system are paramount. At the same time, employee safety must always be considered. At DEL, the application of ozone in cold storage is done by carefully balancing ozone efficacy with employee safety.

Proven Ozone Sizing Guidelines:
DEL sizing guidelines have been proven to correctly specify ozone generator output to apply the appropriate ozone concentrations in cold storage rooms

Corona Discharge Ozone Technology:
Solid cell, ceramic tube dielectric for maximum durability

Built-In Oxygen Concentrator:
Supplies dry, high-purity oxygen to the ozone cell, eliminating cell fouling and maintenance common in other ozone generators; ozone generator will NOT produce nitrogen oxides

Minimal Maintenance:
10,000 hours of continuous operation, maintenance-free

Listings & Classifications:
Ozone generators are UL/cUL classified and NSF listed

Warranty:
Two-year complete parts and labor warranty

Accurate & Reliable Ozone Monitoring:
DEL utilizes only the most accurate and reliable ozone analyzers to effectively monitor and control ozone concentrations in cold storage rooms

Alarm Relay Control:
Ozone concentration set points are used to control ozone generator output

Timer Control:
Daytime and nighttime set points can be selected to maximize anti-microbial efficacy during non-working hours while maintaining safe levels* during working hours

*US OSHA Requirements for Gaseous Ozone
TLV-TWA (Threshold Limit Value–Time Weighted Average) = 0.1ppm: maximum continuous ozone concentration to which an individual can be exposed during a normal 8 hour day / 40 hour work week without adverse effects

TLV-STEL (Threshold Limit Value–Short-Term Exposure Limit) = 0.3ppm: maximum intermittent ozone concentration to which an individual can be exposed for no longer than 15 minutes and no more than 4 times per day (with at least 1 hour between exposures)