What Does “Design Day” Really Mean?

  August 12, 2021 By Luke Powell, WELL AP, LEED AP   As I type this, the ambient (outdoor) temperatures are 95°F dry bulb and 79°F wet bulb here in Louisville, KY. Those conditions are above a “design day” for Louisville (94.0°/75.1°). The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) puts out […]

ASHRAE Epidemic Task Force’s Aerosol Exposure Core Recommendations

On January 6, 2021, the ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers) Epidemic Task Force released new guidance to address control of airborne infectious aerosol exposure. An infectious aerosol is a suspension in air of fine particles or droplets containing pathogens such as the SARS-CoV-2 virus that can cause infections when inhaled. […]

Aerosols, COVID-19 and HVAC

Luke Powell’s presentation to the Louisville ASHRAE Chapter on October 21, 2020 Webinar Recording: Louisville ASHRAE Oct. 2020 Meeting Notes PDF: Aerosols COVID-19 and HVAC – Notes from Louisville ASHRAE Presentation Side Deck: Aerosols, COVID-19 & HVAC – Slide Deck References: How can airborne transmission of COVID-19 indoors be minimised? https://www.sciencedirect.com/science/article/pii/S0160412020317876?via%3Dihub Aerosol and Surface Stability […]

A Quick Blueprint for Building Readiness

Are you a building owner or property manager wondering if you are ready to let people back in your building? Are you an employee or occupant wondering if the space you are getting ready to occupy is as safe as it can be? Are you concerned about the air quality in your child’s school? Below […]