Esco Airstream Class III biohazard safety cabinets offer the highest level of product, operator and environmental protection from infectious/biohazardous aerosols and are suitable for microbiological work with agents assigned to biological safety levels 1, 2, 3, or 4. Designed for an absolute level of containment, they are frequently used for work involving the deadliest biohazards, bacteria, viruses and microorganisms. Manufactured to meet and exceed the latest Class III biohazard safety cabinet requirements of the EN 12469:2000.