Abstract
To help better understand the transport of airborne infectious disease organisms in hospital environments when surge control strategies are implemented, tests were conducted in a recently decommissioned hospital during a one-week period. In this paper the authors evaluate the aerosol data to determine the transport of the releases of a simulated infectious aerosol in a standard patient room into the adjacent hallway under two ventilation conditions: unmodified (normal) and modified (whole floor negative air pressure) ventilation operation mode. The average hallway protection efficiencies remained relatively high (> 98%) when the ventilation system was modified for whole floor negative pressure. During four door entry/exits the average minimum hallway protection efficiencies were lower during the modified ventilation operation (i.e. 93-94%) than those for the unmodified operation (i.e. 98-99%). We note that these lower hallway protection efficiencies may be explained by the 52% reduction in the outdoor air ventilation being supplied to the hallway during the modified operation mode.
Original language | English (US) |
---|---|
Pages | 345-352 |
Number of pages | 8 |
State | Published - Jan 1 2014 |
Event | 13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 - Hong Kong, Hong Kong Duration: Jul 7 2014 → Jul 12 2014 |
Other
Other | 13th International Conference on Indoor Air Quality and Climate, Indoor Air 2014 |
---|---|
Country/Territory | Hong Kong |
City | Hong Kong |
Period | 7/7/14 → 7/12/14 |
Keywords
- Aerosol
- Infectious disease
- Ventilation
ASJC Scopus subject areas
- Pollution
- Building and Construction
- Health, Toxicology and Mutagenesis
- Computer Science Applications