The cabinet BIO ACTIVA was developed for the comprehensive protection of operator, product and environment during the manipulation of pathogen. The biohazard cabinet Class II Type A1 and A2 (ex A and B3) has an opening front that draws air from the outside, vertical laminar airflow inside the cabin and HEPA filter output.

As required by regulations the air, decontaminated by HEPA filter, falls vertically with class 100 laminar flow in the working area and across the working top.
The contaminated air is aspirated from the motor fan located on the top of the cabin and conveyed into a plenum: here about 70% of the air is sent back into the working area after absolute filtration and the remaining 30% is expelled to the outside, thanks to a second motor fan after absolute filtration.
The mass of air, aspirated and recycled from the main motor fan, keeps the back channel in negative pressure. The expelled air is replenished with an equal amount of ambient air aspirated through the front opening, creating an insulating barrier in the front area of access to the workspace.