From all of the data we have analyzed from indoor air quality improvement measures, tools, techniques, and RE reducing infectious airborne pathogens:
Sorted by most efficacious and impactful to least:
1. Installation of 220nm Far UVC germicidal upper room lighting (equivalent of 30 Full exchanges per hour
2. Reconfigure and/or upgrade HVAC to boost fresh air exchange rates to over 7 full air exchanges per hour.
3. Add AT LEAST MERV13 rated HEPA filtration with total Clean Air Delivery Rate appropriately specified to mitigate the max occupancy of the room. In other words. Not just one filtration unit per classroom. A. 35 person classroom might require as many as four Corsi-Rosenthal Boxes.
4. Simply opening doors and windows to allow native fresh air flow.
5. CO2 monitoring systems with online accessible data for all shared spaces with regular check-ups and maintenance. To ensure the systems are used and operating properly.
6. Humidity management. (Yes this can improve your body’s resistance to pathogens and be helpful, but this is a round-off error compared to the systems and approaches that simply eliminate the pathogens from the environment. )
Sorted key impact measures in terms of ease and least costly to hardest and most expensive
1. Opening doors and windows.
2. HEPA filtration units
3. UV lights
4. HVAC upgrades
That said, I firmly believe all shared spaces in schools should have both HVAC upgrades, UV Lights and HEPA filters Installed.
Sorted by most efficacious and impactful to least:
1. Installation of 220nm Far UVC germicidal upper room lighting (equivalent of 30 Full exchanges per hour
2. Reconfigure and/or upgrade HVAC to boost fresh air exchange rates to over 7 full air exchanges per hour.
3. Add AT LEAST MERV13 rated HEPA filtration with total Clean Air Delivery Rate appropriately specified to mitigate the max occupancy of the room. In other words. Not just one filtration unit per classroom. A. 35 person classroom might require as many as four Corsi-Rosenthal Boxes.
4. Simply opening doors and windows to allow native fresh air flow.
5. CO2 monitoring systems with online accessible data for all shared spaces with regular check-ups and maintenance. To ensure the systems are used and operating properly.
6. Humidity management. (Yes this can improve your body’s resistance to pathogens and be helpful, but this is a round-off error compared to the systems and approaches that simply eliminate the pathogens from the environment. )
Sorted key impact measures in terms of ease and least costly to hardest and most expensive
1. Opening doors and windows.
2. HEPA filtration units
3. UV lights
4. HVAC upgrades
That said, I firmly believe all shared spaces in schools should have both HVAC upgrades, UV Lights and HEPA filters Installed.
• • •
Missing some Tweet in this thread? You can try to
force a refresh
