OTO-UV Architectural Swirl UV Diffuser
OTO-UV Architectural Swirl UV DiffuserOTO-UV Architectural Swirl UV DiffuserOTO-UV Architectural Swirl UV Diffuser Installed in Office Ceiling with High Induction Diffusers in BackgroundOTO-UV Architectural Swirl UV Diffuser Installed in Office Ceiling - Closeup ViewCFD Analysis of Air Velocity Inside UV Diffusers to Optimize UVC IrradiationUV Diffuser Air Sterilization - Particle Exposure Analysis using CFDUVC Light Disinfection in UV DiffuserUV Diffuser with MERV-9 Filtration


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Architectural Swirl UV Diffuser for 210 cfm – 340 cfm

UV Diffusers combine high efficiency Filtration, UV-C Germicidal Irradiation and High Induction Diffusion of the air coming from the ventilation system in the room – a perfect combination to help contain the spread of COVID-19 and other airborne diseases in commercial and institutional buildings.

They act as a shield protecting the room from potential contamination of the recycled air.

UV Diffusers are highly efficient, compatible with existing systems, easy to install and to maintain. For more information about UV Diffusers, visit the UV Diffusers Website at UVDiffusers.com.

OTO-UV swirl diffuser delivers the air with a high discharge velocity, mixing the air more efficiently than common diffusers in a 360-degree diffusion pattern. OTO diffusers offer a very reliable performance in VAV applications in both heating and cooling.


Product Description

UV Diffusers by EffectiV HVAC™ act as a shield ensuring that the air entering a room is pure and safe from potential contamination in other rooms of the building, even when a significant percentage of air is recycled and recirculated. They are a 3-in-1 solution cleaning recycled air from pathogens using UV-C light, filtering the air from larger particles with a MERV-9 filter, and enhancing air mixing and room ventilation. By filtering the air at the end of the duct line and by slowing it down even more, UV Diffusers achieve up to 99.9999% sterilization performance of SARS-CoV-1, SARS-CoV-2, Legionella and other airborne viruses and bacteria which can spread easily through the ventilation system.

Visit the UV Diffusers website for more information and to see the videos at UVdiffusers.com

UV Diffusers are a practical solution which can be retrofitted in most existing buildings without other significant upgrades, and offer easy access for maintenance and filter replacement.

  • UV Diffusers help contain the spread of viruses and bacteria through ventilation systems
  • 3-in-1 solution combining UV-C irradiation, air filtration and improved air mixing and room ventilation
  • Tested with the real SARS-CoV-2 virus in a 3rd party laboratory, achieving a 99.949% single-pass virus deactivation at 458 cfm
  • Hinged face provide easy access for filter change and maintenance
  • Suitable for new buildings and existing buildings
  • High discharge velocity provide efficient mixing of supplied air with room air


OTO-UV Architectural Swirl Diffuser distributes the air in a fix 360-degree high induction swirl pattern.

The OTO face is stamped directly in a galvanized steel sheet and has no moving parts.


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.


Additional Information

Adjustable Airflow



Galvanized Steel


24″ x 24″


BIM Objects

CAD Files

3d View