UV Diffusers

Treating Your Recycled Air to Prevent the Spread of Airborne Diseases Through Commercial Ventilation Systems

UV Diffusers act as a shield treating the recycled air coming from the ventilation system before it enters the room. The purified air is then mixed with room air with high efficiency in order to reduce the concentration of contaminants. UV Diffusers improve indoor air quality and ventilation efficiency to help prevent the spread of airborne diseases.


UV Diffusers have been tested with live samples of SARS-CoV-2 virus by an independent lab in California and achieved a single-pass virus deactivation rate of 99.949% while supplying 458 cfm of air.

View the report

A Three-in-One Solution

UV-C Air Disinfection
1. UV-C Irradiation

UV Diffusers treat the air using UV-C light to neutralize airborne pathogens like viruses, bacteria, and fungi. An ozone-free UV-C lamp is integrated into a special irradiation chamber designed to increase UV-C intensity and air contact with UV-C rays.

UV Diffusers use air filtration to clean the air
2. Air Filtration

A MERV-9A filter catches and traps larger particles, including some viruses, bacteria, mold spores and other microbes and allergens. Filtering the air at the end of the duct line prevents any re-contamination of the air after the filtration process. A common example of re-contamination is dust accumulation in the duct over time, which can create allergic reactions when the air conditioning system is running.

Improved Ventilation Against COVID-19
3. Improved Ventilation

Improving air mixing is what EffectiV HVAC diffusers are designed for. High induction diffusers provide better mixing of the new air with room air, resulting in a faster and more efficient removal of contaminants. Other benefits of efficient air mixing are improved thermal comfort, enhanced performance of the HVAC system and reduced energy consumption.

Important: the use of this device is a supplement to and not a substitute for standard infection control practices; users must continue to follow all current infection control practices, including those related to the cleaning and disinfection of environmental surfaces.

UV Diffuser treats the air coming from the ventilation system with UV-C light and filter, before distributing the air in the room while improving air mixing

UV Diffusers Can Be Installed in Existing Buildings

Treating the Recycled Air

Did you know that in most commercial and institutional buildings, up to 90% of the air is recycled and recirculated in all the rooms? We do this in order to save energy. However, many of these buildings do not filter the recycled air and recent studies show solid evidence of the airborne transmission of SARS-CoV-2. UV Diffusers treat the recycled air against airborne viruses and bacteria before it enters the room, acting as a barrier helping to protect the room from the rest of the building.

Compatible with Older Ventilation Systems

Unlike MERV-13 and HEPA filters, UV Diffusers don’t add a lot of pressure to the ventilation system. This makes them compatible with existing buildings without needing expensive system upgrades. UV diffusers can replace most existing diffusers without issues and even improve air distribution performance and thermal comfort.

Efficient Air Treatment

Mycobacterium tuberculosis
Legionella pneumophila
Candida auris
E. Coli
Influenza A

This is an example of single-pass UV-C germicidal irradiation results for a UV Diffuser handling 250 cfm of air volume. These values were calculated by a 3rd party company expert in UV-C technology. Visit the Performance page for a complete list of pathogens or click here to view the report.

Air Disinfection Using UV-C Light in UV Diffuser by EffectiV HVAC

Occupants’ safety is our main concern

A reassuring blue glow indicating that the air is being treated

UV Diffusers do not produce UV-A nor UV-B, only UV-C rays and blue light. They are designed to contain UV-C rays inside the diffuser so that occupants in the room are not exposed. Only some blue light passes through in order to create the safe and reassuring blue glow you can see, symbolic of clean air.

The subtle blue glow is also an indicator that the system is working and actively purifying the air.

UV Diffusers are UL Certified for Safety

A Perfect Solution For Commercial Buildings, Including

Safe Ventilation for Office Buildings With UVC Air Disinfection and Filtration
Office Buildings

Safety is one of the main concerns when it comes to employees returning to the office. UV Diffusers help ensure their safety and also reassure employees. They can see that measures are being taken to make sure the air they are breathing is safe. Commercial real estate is facing new challenges and upgrading your office spaces with UV Diffusers can lower energy consumption and operation costs, while increasing occupancy and building value.

Safe Ventilation System to Prevent the Spread of COVID-19 in Schools

Children’s education must continue and precautions are being taken such as limiting children interactions between classrooms. This helps contain potential outbreaks within one classroom only, preventing the virus from spreading between classrooms. There is, however, a risk of airborne viruses spreading through the ventilation system, but we must keep the systems running in order to ventilate the rooms and avoid high concentrations of virus particles in the air. UV Diffusers are designed to stop the spread from room to room and are compatible with existing school ventilation systems.

UVC Air Purification System for Dentists to Disinfect the Air from Viruses and Bacteria
Dental Clinics

Dental clinics must take airborne diseases seriously. To ensure the health and security of employees, patients and professionals, proper ventilation is an absolute necessity and UV Diffusers are a perfect solution for air treatment in order to prevent the accumulation and recirculating of pathogens within the clinic. UV Diffusers’ subtle blue glow in the ceiling will reassure patients and staff that microbe-free and filtered air is being delivered, allowing them to breathe with more confidence.

Based on technologies that are proven safe and effective

UV Diffusers ingeniously combine the three proven methods recommended by ASHRAE to ensure safe indoor air quality: good ventilation, filtration, and UV-C germicidal irradiation.

UV Diffusers are a subtractive air cleaning technology. Unlike additive technologies, UV Diffusers do not add ozone or ions to the air you breathe.

UV Diffusers are UL Validated for Zone Ozone Emission

Preventing the Spread of airborne diseases through Ventilation Systems

SARS-CoV-2 is proven to be airborne and some virus particles are too small to be caught by standard filters. Recent studies demonstrated that even MERV-13 filters have an efficiency of less than 90% when catching virus particles.

Some studies have shown that the SARS-CoV-2 virus can remain suspended in the air and alive for long periods of time. The airborne virus can travel long distances and spread from one room of a building to another through the ventilation system of commercial and institutional buildings.

UV Diffusers can help prevent that spread between rooms by acting as a barrier protecting each room individually. They are the last object that the air passes through before entering the room. Once UV Diffusers are installed in a room, they continuously treat the air coming from the rest of the building before it enters the room.

UV-C light is proven effective against a large spectrum of viruses and bacteria. UV Diffusers are not only a short-term solution against COVID-19, they will also help improve the overall air quality in the long term and could potentially help slow down future pandemics.

UV Diffusers can replace existing diffusers in the whole building, or be installed in a single room or office space. Easy access to ceiling diffusers gives building owners and occupants a lot of flexibility in implementing this solution.

PLAY-UV Diffuser Selected as Finalist of the AHR Expo 2021 Innovation Awards in the Indoor Air Quality Category

The PLAY-UV diffuser has been selected by a panel of highly respected HVAC experts.

PLAY is the only diffuser providing a full 360-degree horizontal adjustment of the airflow. Each round sector can be manually rotated from the face to redirect the airflow exactly where we need it.

PLAY allows us to also reach parts of the room which would normally lack proper ventilation, either because of the room configuration, the diffuser location, obstacles, or other factors.

PLAY also allows us to improve thermal comfort by redirecting the air away from people feeling drafts, or towards sources of heat gain/loss like large windows.

Thanks to the PLAY diffuser, HVAC technicians can shape the air circulation in the room with precision, ensuring an almost perfect ventilation in any room configuration.

PLAY-UV Diffuser for High Efficiency Filtration and Ventilation is Finalist in the Indoor Air Quality Category of the 2021 AHR Expo Innovation Awards Competition