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CFD Analysis of Hydroxyl Technology to Reduce Risk of Indoor Pathogen Transmission – ASHRAE Journal, March 2024
By Kishor Khankari, PH.D., Fellow ASHRAE

Pyure’s hydroxyl technology is spotlighted in the March 2024 edition of the ASHRAE Journal for its remarkable ability to combat indoor air pollutants and pathogens. Authored by Kishor Khankari, PH.D., Fellow ASHRAE; Connie Araps, PH.D., Member ASHRAE; David Crosley, PH.D., the study, using Computational Fluid Dynamics (CFD), presents compelling evidence on the efficacy of our innovative air purification method. Read the complete study linked here.

Key findings demonstrate that our technology, already proven to inactivate infectious aerosols, enhances traditional ventilation methods and offers a robust defense against pathogen transmission in indoor spaces.

Lowered transmission risk

The study, utilizing advanced CFD simulations, reveals a significant reduction in the probability of infection—by about 38% in the breathing zones of occupants and a 73% decrease in the spread of infection probability at 3 ACH in a simulated office environment.

Viral cloud spread WITHOUT Pyure at 3 ACH

Viral cloud spread WITH Pyure at 3 ACH

The reduction in the viral cloud indicates that transmission probability is reduced by 73%

 

Improve energy efficiency

Dr. Khankari’s CFD model also compared scenarios of 3 ACH ventilation with 2 ACH ventilation + Pyure and found that the spread index was 25% lower with Pyure at 2 ACH than with 3 ACH ventilation alone, also predicting that the addition of Pyure can reduce the required dilution ACH by 33%.

Viral cloud spread WITH Pyure at 2 ACH

The reduction in the viral cloud indicates that transmission probability is reduced by 25% and a reduction in required dilution.

 

For a deeper dive into the research and to explore Pyure’s hydroxyl technology’s full potential in creating safer indoor environments, we invite you to read the complete study linked here or watch the ASHRAE Journal webinar linked here.

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