Engineering Strategies for Airborne Diseases

H V A C S Y S T E M S T R A T E G I E S

CONTROL OF AIR DIRECTION - OVERHEAD DISTRIBUTION

• This system is not very efficient with providing occupant isolation. • Workstation placement should be reconfigured to allow for supply and return air zones. This may result in further reduced occupancy. • HVAC system ductwork and diffusers should be placed accordingly so that workstations are not located within airstream. • Supplementary exhaust/transfer systems (ducted or unducted) can be considered to guide the air away from occupants at all times. • Portable filtration systems can be utilized in high traffic areas. • Personalized ventilation systems can be considered where other measures are not feasible. This option will require drastic infrastructure upgrades.