Post by David Elfstrom - Takahē

2y

For #TwitterMigration my #DoAllTheThings infographic and hashtags for #engineering controls in a small commercial building to address #COVIDisAirborne:

#maskup #respirators #N95 #ventilation #filtration #IAQ #HEPA #CorsiRosenthalBox #UVGI #FarUVC #CO2 #COVIDCO2

Small commercial building schematic with labels
By @DavidElfstrom
Maximize outdoor air damper position and economizer function
Higher MERV filter rating, ensure no bypass
Properly tension fan belt
Exhaust fan functioning
Dotted box surrounding: Regular inspection, maintenance, filter changes
Windows partially open
Upper room UVGI (Ultraviolet Germicidal Irradiation)
IAQ monitor with action limits: Temperature, Relative Humidity, Carbon Dioxide, Particulate Matter
HEPA or Corsi-Rosenthal box in center of room
Respirator on person for source control & PPE
Fan control changed from Auto to ON

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