A study at Yale University suggests that quantitative performance analysis of laboratory airflow may show more conclusive results than traditional methods of measurement, and thus obviate the perceived need for costly retrofits and upgrades in order to comply with the CDC/NIH’s new prohibition against reversal of airflow under failure conditions found in Biosafety in Microbiological and Biomedical Laboratories 5th Edition (BMBL).
The American National Standards Institute (ANSI) will be collecting comments through Sept. 10 on its new standard, Testing and Performance-Verification Methodologies for Ventilation Systems for Biosafety Level 3 (BSL-3) and Animal Biosafety Level 3 (ABSL-3) Facilities, also known as ANSI Standard Z9.14-2013. The 127-page document provides guidance for the inspection and testing of ventilation system components of new or existing BSL-3 and ABSL-3 laboratories, including research, pharmaceutical, and insectary facilities.
Annual revalidation of BSL-3 biocontainment facilities—which involves verifying that systems are operating to specifications—is important not only to maintain a safe working environment for scientific needs, but also to reduce utility and maintenance costs and protect the substantial financial investments such buildings represent. The time and expense of the revalidation process can be minimized with careful preplanning.
