Related Experiment Video
Updated: Aug 4, 2026

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases
Published on: March 1, 2024
Negative-Pressure monitoring of tuberculosis isolation rooms within New York State hospitals
N Pavelchak1, K Cummings, R Stricof
1New York State Department of Health, Center for Environmental Health, Division of Occupational Health and Environmental Epidemiology, Troy 12180, USA.
Abstract:
A previously published study recommended the daily use of visible smoke to test for negative air pressure in isolation rooms occupied by potentially infectious tuberculosis cases. Continuous monitoring devices were found to have poor reliability. Findings from our survey of engineering controls in acute-care hospitals within New York State support this recommendation.
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