When it comes to precision, reliability, and durability in ozone generation, the HTU-500 Ozone Generator delivers industrial performance in a compact, lab-friendly footprint. Ideal for laboratories, pilot systems, and small-scale industrial applications, the HTU-500 combines state-of-the-art materials, advanced design, and user-friendly features for clean, efficient ozone production.
Pure Ozone, No Contaminants
At the heart of the HTU-500 is its double quartz dielectric corona cell—a superior design that ensures the production of high-purity ozone with zero contamination. Only Kynar, Teflon, and Quartz come into contact with oxygen and ozone gas throughout the internal pathways. This non-metallic construction avoids oxidation, contamination, and component degradation, making it one of the cleanest ozone generators on the market.
High-Efficiency Ozone Production
With just 0.75 LPM of oxygen, the HTU-500 can produce 1 gram of ozone per hour, making it an incredibly efficient option for small-scale processes. Whether you’re using dry air or oxygen, this unit is capable of adapting to your needs, and its performance is both stable and impressive.
Precision Control with 10-Position Output Dial
The HTU-500 is equipped with a 10-position switch that adjusts ozone output in 10% increments, providing precise control over ozone concentration. This intuitive design includes detent settings for each output level, ensuring consistent and repeatable operation.
Performance charts are available to show exact ozone output levels at various oxygen flow rates—giving users confidence in dosing and application planning.
Rugged Design Built for Longevity
Encased in a powder-coated aluminum cabinet, the HTU-500 is designed for both bench and wall mounting, offering flexibility in installation. The detachable power cord, rugged construction, and compact size make it easy to integrate into existing systems while ensuring long-term durability.
Advanced Circuit Protection
The HTU-500’s smart inverter technology adds another layer of reliability. If the corona cell becomes contaminated with moisture or debris, the inverter will automatically shut down ozone production to prevent internal damage. Every six seconds, the system attempts to resume operation, restarting automatically once conditions stabilize—minimizing downtime and extending equipment life.
Double Quartz Corona Cell: Clean and Durable
Unlike traditional glass corona cells, the HTU-500 uses true quartz—a material that is ozone-resistant, strong, and chemically inert. The double quartz design ensures complete gas isolation from any metals, maintaining ozone purity and preventing leaks. This robust construction dramatically improves the longevity and reliability of the corona cell, making the HTU-500 an industry leader in design quality.
Flexible Operation with or without Oxygen
Whether you’re using oxygen for high-efficiency ozone production or dry air as a more accessible option, the HTU-500 is built to perform. An optional internal air pump pulls ambient air at 3–4 LPM, offering a simple solution when oxygen is unavailable. However, for best performance and long-term reliability, dry, clean oxygen is recommended.
⚠️ Note: Using ambient air long-term may contaminate the corona cell. The air pump is best used when oxygen is not available.
Performance Data Snapshot
Here’s a look at actual ozone output from oxygen across various flow rates:
| Flow Rate (LPM) | Ozone Concentration (g/m³) | Ozone Output (g/hr) |
|---|---|---|
| 0.75 | 23.8 | 1.07 |
| 1.0 | 18.3 | 1.10 |
| 2.0 | 10.6 | 1.27 |
| 3.0 | 8.1 | 1.46 |
| 4.0 | 6.2 | 1.49 |
(More detailed charts available via downloadable documents.)
Common Applications
The HTU-500 is the go-to ozone generator for a wide variety of uses:
- Ozonated Olive Oil Production
- Laboratory Testing
- Aquaponics & Hydroponics
- Dental Sterilization
- Spa & Pool Water Treatment
- Small Aquaculture & Aquarium Systems
- Pilot Research Systems
- Odor Elimination in Controlled Spaces
Why Choose the HTU-500?
According to Oxidation Technologies:
“The HTU-500 ozone generator is a great value… offering the quality and reliability of industrial ozone generators at a price comparable to disposable, foreign-made units. Built with high-quality, replaceable parts, it could be the last ozone generator you ever need.”
Downloadable Resources
Final Thoughts
Compact, reliable, and engineered for purity and durability, the HTU-500 Ozone Generator is a standout performer in the world of lab and small-scale ozone applications. Whether you’re running a controlled experiment, treating water, or producing ozonated oils, the HTU-500 delivers unmatched value and performance in a rugged, easy-to-use package.
You can find this product here: https://www.oxidationtech.com/htu500.html




