When it comes to reliable, efficient ozone generation, the VMUS-4 stands out as one of the most adaptable units on the market. Whether you’re working in a lab, a water treatment facility, or any environment where flexible ozone output is critical, the VMUS-4 delivers performance you can count on—without the hassle.
Let’s take a look at why the VMUS-4 has become a go-to ozone generator for professionals across industries.
Powerful and Flexible Ozone Production
The VMUS-4 is capable of producing up to 10 grams per hour of ozone from oxygen at just 4 LPM, with concentrations over 3% by weight. Need higher concentrations? No problem. At 1 LPM, it delivers ozone at 5.3%—ideal for applications requiring higher solubility and dissolved ozone levels.
Prefer dry air as your feed gas? The VMUS-4 can also generate 4 g/hr from dry air, offering a cost-effective alternative without sacrificing performance.
And here’s where it really shines: whether your system is under vacuum or pressure, the VMUS-4’s corona cell can handle it with ease. It’s air-cooled, so you won’t need any additional water cooling setup.
Compact, Wall-Mountable, and Built to Last
Designed with ease-of-installation in mind, the VMUS-4 features:
- Wall-mountable powder-coated aluminum cabinet
- Standard flow meter and adjustable output control
- Built-in flow switch for automated operation
- Rebuildable corona cell with quartz dielectric
- Detachable power cord and circuit protection
- 120V or 220V power compatibility (50/60 Hz)
This ozone generator is as user-friendly as it is durable. All components are repairable or replaceable, and the stainless steel + quartz construction ensures long-term operation even in demanding environments.
Advanced Controls and Automation
The VMUS-4 offers adjustable ozone output via a digital touchpad or 4-20 mA input, perfect for integration into automated systems. A built-in flow switch automates ON/OFF functionality based on gas flow—especially useful with venturi injectors or oxygen concentrators.
Prefer remote control? Optional external ON/OFF contacts allow seamless system integration.
Optional Features and Accessories
Customize the VMUS-4 to fit your needs with options such as:
- Internal air pump (ideal for bubbling applications)
- Disable flow switch (for very low-flow operations)
- 4-20 mA control input
- NEMA 4 enclosure for protection in wet or hostile environments
Pair it with an oxygen concentrator like the MAX-5, or use it with dry compressed air and an air dryer like the VMD-8 or VMD-32 for optimal performance.
Real-World Versatility
Whether you’re dissolving ozone in water using a venturi injector, operating in a lab with oxygen feed gas, or need a system that functions under vacuum or pressure, the VMUS-4 fits the job. It’s an excellent solution for:
- Laboratories
- Cooling systems
- Industrial water treatment
- Machine coolant tanks
- Environmental testing
Built to Endure
Ozone systems often fail due to poor feed-gas quality. The VMUS-4’s rebuildable corona cell ensures that feed-gas issues don’t result in long-term downtime. Even if the cell becomes contaminated, it can be cleaned and restored—no need for costly replacements.
Performance That Speaks for Itself
Here’s a quick look at what you can expect from the VMUS-4 using oxygen feed gas:
| O2 Flow | O3 Output | Ozone Concentration |
|---|---|---|
| 1.0 LPM | 4.78 g/hr | 79.6 g/m³ |
| 2.0 LPM | 7.67 g/hr | 63.9 g/m³ |
| 4.0 LPM | 10.92 g/hr | 45.5 g/m³ |
And from dry air:
| Air Flow | O3 Output | Ozone Concentration |
|---|---|---|
| 4 LPM | 2.19 g/hr | 0.68% |
| 10 LPM | 4.0 g/hr | 0.5% |
Final Thoughts: The Ultimate Mid-Sized Ozone Generator
The VMUS-4 blends performance, efficiency, and flexibility into one compact and reliable package. Whether you need a wall-mounted ozone generator for simple surface oxidation or more advanced water treatment processes, this unit is built to deliver.
Its ability to operate on either oxygen or dry air—and under either vacuum or pressure—sets it apart from other systems in its class. With user-friendly controls, robust safety features, and a fully serviceable design, the VMUS-4 is a smart investment for any serious ozone application.
You can find this product here: https://www.oxidationtech.com/catalog/product/view/id/966/s/vmus4/category/67/

