Class II Bioban

These hood families are normally used in Microbiology, Virology, Haematology and Cell Culture laboratories. They are increasingly being used in innovative fields of research and in particular for the manipulation of:

• recombinant DNA
• Oncogenic viruses
• Pathogens

These hood product series are classified as follows:

• BIOHAZARD
• Class II as they are equipped with a partial frontal working opening allowing the suction of 30% of the total air involved at a minimum speed of 0.4 m/s and a recirculation system for the remaining 70% which is sent to the working area in laminar flow at an average speed of 0.4 m/s (as defined by EN 12469 standards).
• Type A1, according to NSF 49 (U.S.A.) standards, as can be used safely even if the expelled air coming from the frontal barrier is returned to the environment.
• Type A2 as, according to NSF 49 (U.S.A.) regulations, the expelled air can be channeled towards the outside of the room where it is used (for further technical details see the dedicated paragraph).