“HEPA filter”
Biosafety Cabinet Class II A2 vs B2 Airflow, Containment, and Ducting Requirements
A Class II A2 biosafety cabinet typically recirculates about 70% of HEPA-filtered air and exhausts about 30% back to the room or through an optional canopy, whereas a Class II B2 cabinet exhausts 100% of its air through a dedicated building system. A2 is the usual choice for microbiological work ...
How do air filters "catch" dust particles?
Air filters are filtration-based air purifiers. The HEPA filter we often hear about stands for High-efficiency Particulate Air Filter. Let's break down the five core principles of air filtration to help you understand its underlying logic. 1. Interception Effect: The fibers ...