The halō™ air disinfection system is designed to continuously reduce airborne pathogens and allergens in occupied indoor spaces. It is designed to rapidly inactivate a broad spectrum of airborne contaminants - including influenza (flu), common cold and respiratory viruses, measles, tuberculosis, and allergens such as dust mites, mold spores, and pet dander - while providing ongoing protection in areas up to 4,500 square feet (with scalability for larger spaces).

Using patented low-UVC technology, the halō™ actively lowers the concentration of infectious aerosols and particulates in the air during operation, helping reduce the risk of airborne transmission regardless of individual health status or environmental conditions.

The system works by drawing air out of the breathing zone - where people inhale and exhale - and directing it into a proprietary low-UVC light ring. There, airborne pathogens and allergens are rapidly reduced or neutralized before cleaned air is returned to the breathing zone. Without active air disinfection, microscopic particles can remain suspended in indoor air for extended periods, increasing the likelihood of exposure.

Powered by a proprietary dosing algorithm, the halō™ delivers optimized low-UVC energy for effective and consistent air disinfection. This integrated approach enables continuous reduction of airborne contaminants, supporting healthier indoor environments across residential, commercial, and institutional settings.

The halō™ air disinfection system delivers a highly efficient, real-time solution for improving indoor air quality by targeting both airborne pathogens and common allergens—including flu, cold viruses, respiratory infections, measles, tuberculosis, dust mites, mold, and pet dander.

Unlike conventional approaches, the halō™ removes potentially contaminated air directly from the breathing zone at rates exceeding 2,000 cubic feet per minute, disinfects it with up to 99.9% effectiveness (as demonstrated under controlled laboratory conditions), and continuously returns clean air to the breathing zone.

Compared to HVAC-based ventilation, the halō™ is:

1. Faster in reducing airborne contaminants
2. More energy-efficient and cost-effective to operate
3. Lower in carbon footprint, avoiding the need for excessive air changes

Designed specifically for use in occupied environments, the halō™ combines targeted airflow and low-UVC disinfection to provide safe, continuous treatment of indoor air - capabilities that traditional HVAC systems, portable filters, or ionization systems are not typically designed to provide for the breathing zone.

The system operates quietly and unobtrusively, integrating seamlessly into its surroundings while delivering ongoing protection.

Each halō™ Model 5R/M unit covers 750 to 4,500 square feet, with scalable deployment for larger spaces. Additional product configurations are in development for smaller environments such as elevators, waiting rooms, and corridors.

By continuously reducing airborne contaminants, the halō™ supports healthier indoor environments, improved employee productivity, and reduced absenteeism and operational disruption.

Overall, the halō™ provides a practical, scalable solution for reducing exposure to airborne pathogens and allergens - helping protect occupants wherever people live, work, and gather.

While a range of indoor air quality solutions exists, most approaches have inherent limitations in effectively reducing airborne pathogens and common allergens - including flu, cold viruses, respiratory infections, measles, tuberculosis, dust mites, mold, and pet dander - in the breathing zone, where exposure risk is highest.

Below is a comparison of common alternatives and their constraints:

Central Heating and Cooling Systems (HVAC)

• HVAC systems typically draw air from wall or ceiling intakes, which do not effectively remove contaminants from the breathing zone in real time.
• Wall intakes allow untreated air to linger longer where people inhale and exhale.
• Ceiling intakes may lack sufficient aerodynamic reach to capture and treat air in the breathing zone efficiently.
• Airflow patterns can create stagnant zones or uneven circulation, where contaminants may accumulate.
• While HVAC systems may incorporate filtration, UV, or other treatment methods, they are not designed for targeted, continuous disinfection at the source of exposure.

Portable Air Purifiers

• Portable units are designed for localized filtration rather than whole-room breathing zone control.
• Lower airflow rates limit their ability to capture and treat airborne particles effectively as people move within a space.
• Unidirectional airflow does not consistently clear contaminants from the breathing zone.
• As a result, their impact on real-time reduction of airborne exposure risk is limited in dynamic, occupied environments.

Ceiling-Based and Upper-Air Systems

• Conventional ceiling fans primarily mix air, redistributing contaminants rather than removing them.
• Systems incorporating UV or other technologies often have insufficient exposure times for meaningful inactivation of airborne pathogens.
• Upper-air disinfection units typically operate above occupant level and do not actively capture or clear breathing zone air.
• Many lack the integrated airflow and dosing control needed for consistent, whole-room performance.

The halō™ Advantage

The halō™ system is uniquely designed to address these gaps by:

• Directly capturing air from the breathing zone, where exposure risk is highest
• Delivering continuous, controlled low-UVC disinfection
• Returning cleaned air to the breathing zone
• Providing effective reduction of a wide range of airborne pathogens and allergens

This integrated approach enables real-time, whole-room air treatment in occupied environments, supporting healthier indoor spaces where people live, work, and gather.

The halō™ air disinfection system delivers a next-generation approach to indoor air quality, providing advanced protection against a broad range of airborne pathogens and allergens—including flu, cold viruses, respiratory infections, measles, tuberculosis, dust mites, mold, and pet dander. Its performance is driven by a uniquely integrated design that combines three critical capabilities:

Effective Capture of Breathing Zone Air

The halō™ uses a proprietary upflow fan system mounted at the center of the ceiling to rapidly capture exhaled air—within seconds—from the breathing zone, where exposure risk is highest:

• Designed to leverage the natural upward movement of warm exhaled breath
• Creates a defined “cone of influence” with gentle but effective airflow
• Continuously removes airborne particles before they disperse throughout the space

Optimized Low-UVC Disinfection

Captured air passes through the halō™'s engineered low-UVC light ring, where airborne pathogens and allergens are rapidly inactivated:

• Delivers a precisely controlled UVC dose using a proprietary algorithm
• Enables high-efficiency pathogen reduction without disrupting occupied environments
• Designed for continuous, real-world operation with consistent performance

Controlled Airflow and Clean Air Return

An advanced aerodynamic cowling system ensures efficient airflow:

• Maximizes distribution of cleaned air back to the breathing zone
• Maintains balanced airflow patterns to minimize stagnation or mixing of untreated air
• Supports consistent, whole-room air quality improvement

Integrated Advantage

By combining targeted air capture, effective disinfection, and optimized return airflow, the halō™ is designed to delivers continuous, real-time reduction of airborne contaminants directly where people breathe.

This coordinated approach differentiates the halō from traditional HVAC, portable, and ceiling-based solutions, offering a scalable, energy-efficient, and occupant-safe system designed to improve indoor environments.

Yes. Low-UVC technology has been widely studied and used for decades to inactivate pathogens, including coronaviruses. Early in the COVID-19 pandemic, research led by Dr. Anthony Griffiths at Boston University Medical School demonstrated that UVC light can effectively inactivate SARS-CoV-2, the virus responsible for COVID-19.
Using LUV Systems’ low-UVC technology and the halō™ light fixture, Dr. Griffiths’ laboratory reported greater than 99.9% inactivation of COVID-19 virus particles under controlled laboratory conditions.

Subsequent studies by researchers worldwide have validated the effectiveness of UVC as a reliable method for neutralizing the virus, including our own advanced COVID-19 inactivation research.

The halō™ system builds on this proven science by combining targeted airflow and optimized UVC dosing. Its proprietary upflow design creates a defined “cone of influence,” gently drawing air from the breathing zone into the system, where it is disinfected before being returned to the breathing zone. This integrated approach is designed to enable rapid, continuous reduction of airborne viral load in indoor environments, supporting safer shared spaces.

The halō™ system is engineered for safety and has been validated through rigorous third-party testing and certification. It has achieved both UL/ETL certification and California Air Resources Board (CARB) approval, confirming compliance with strict standards for electrical safety, UV exposure, and ozone emissions.

As part of UL testing, the system was evaluated for ultraviolet radiation exposure, electrical integrity, thermal performance, and overall product safety.

CARB certification further verifies that the halō operates within stringent limits for indoor air quality and zero-ozone emission requirements—one of the highest regulatory benchmarks in the United States.

These independent validations, combined with internal testing, confirm that when installed and operated as specified and in accordance with LUV Systrems' guidelines, ambient UVC levels remain well below established safety thresholds, enabling safe, continuous operation in occupied environments.

No. The halō™ system is designed and certified to operate without generating ozone.

All lamps used in the halō™ are independently certified as ozone-free, and third-party laboratory testing has confirmed that the system does not produce measurable ozone during operation.

In addition, the halō™ has achieved CARB certification, which includes strict compliance with California’s ozone emission limits—among the most rigorous standards in the United States.

The halō™ air disinfection system uses low-UVC light to safely and effectively inactivate airborne pathogens. It combines engineered airflow with proven UVC technology to continuously clean indoor air.

A proprietary ceiling-mounted fan operating in upflow mode draws over 2,000 cubic feet per minute of air from the breathing zone—where people inhale and exhale—and directs it into an enclosed low-UVC light ring within the unit’s aerodynamic cowling, where airborne contaminants are rapidly inactivated.

Once treated, cleaned air is returned to the breathing zone, supporting continuous reduction of airborne particles.

Importantly, the halō™'s patented cowling design contains the UVC light, ensuring that occupants are never directly exposed to excessive UVC levels during proper operation.

The halō™ is designed for continuous operation whenever spaces are occupied, providing ongoing air disinfection while people are present. The system is controlled with a simple on/off wall switch.

Each halō™ installation includes a display certificate indicating that indoor air is being actively disinfected. The certificate is valid for 12 months and can be renewed upon routine inspection or maintenance.

In addition, the system provides clear visual indicators during operation: a gently spinning fan and a soft aquamarine glow confirm that the unit is functioning.

Yes. To maintain optimal performance, proactive bulb replacement is recommended along with routine inspection and cleaning:

• Typical bulb life: approximately 9,000 hours (may vary based on usage)
• Scheduled replacement helps ensure consistent disinfection performance

• Power consumption: ~500–650 watts
• Estimated operating cost: approximately $50 per month (based on typical usage)

Recommended maintenance includes routine inspection and scheduled bulb replacement. Estimated professional servicing costs are approximately $500 annually, covering labor, parts, and system checks.

Yes. The halō™ is backed by a limited 5-year warranty covering all non-consumable components, including electronics, mechanical parts, and structural elements. Details of the limited warranty are provided here.