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Core Recommendations for Reducing Airborne Infectious Aerosol Exposure

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The following recommendations are the basis for the detailed guidance issued by ASHRAE Epidemic Task Force. They are based on the concept that within limits ventilation, filtration, and air cleaners can be deployed flexibly to achieve exposure reduction goals subject to constraints that may include comfort, energy use, and costs. This is done by setting […]

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ASHRAE Epidemic Task Force Building Readiness

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The following Building Readiness information is meant to provide practical information and checklists for how your building should be operating and how to practically check its operation. Actual conditions at any specific building will vary, and the adjustments that should be made will depend on many factors such as local climate, complexity of systems involved

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COVID-19 Common Practices: Advantages, Disadvantages, Risks, and Comments

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This document provides considerations related to various measures that may be employed in operating rooms (OR) to reduce the spread of COVID-19. This includes advantages, disadvantages, risks, and comments associated with each measure. It contains general feedback from the AIRAH Infection Control and Operating Theatre Practices Special Technical Group (STG) on common practices in infection

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COVID Confidence: 10 Essential Pieces of Advice for You and Your Customers

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Since our world got turned upside down, we’ve been learning more and more about COVID-19 and how to prevent its spread. Although we’re still a long way from understanding the virus completely, the time seemed right to provide an update. Drawing from AIRAH’s extensive COVID-19 guidance and external resources, we’ve compiled a list of 10

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School Ventilation: A Vital Tool to Reduce COVID-19 Spread

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Many kindergarten through 12th grade (K-12) schools in the United States do not have good ventilation. This is a longstanding problem with demonstrably negative effects on student learning. We can and should act to fix this to ensure good indoor air quality for all students, educators, and school staff. During the COVID-19 pandemic, it is

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Development of a Method to Determine the Fractional Deposition Efficiency of Full-Scale HVAC and HEPA Filter Cassettes for Nanoparticles ≥3.5 nm

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Abstract: Novel methods have been developed to measure the fractional deposition efficiency for nanoparticles of full-scale HVAC and HEPA filter cassettes down to a particle size of 3.5 nm. The methods use a flame spray nanoparticle generator to produce NaCl test aerosols with narrow size distributions and very high concentrations. While the efficiency curves of

Development of a Method to Determine the Fractional Deposition Efficiency of Full-Scale HVAC and HEPA Filter Cassettes for Nanoparticles ≥3.5 nm Read More »