INTERLOCK SYSTEM
In hospital centers or laboratories, where clean rooms environments are required to avoid contamination of pathogens between areas, interlock systems allow to ensure safety in environments such as intensive care units (ICU) for immunosuppressed or infectious patients, burned areas, diagnostic rooms with radiological protection (CT), sterilization and microbiology laboratories.
To maintain pressure differentials in clean rooms, the passage between chambers must be ensured through air locks and are ideally controlled by interlock (Prolock) locks. Air locks are mostly used for material transfer and staff’s arrival and departure. The air locks prevent the passage of potential particles and air between the two clean rooms, when two doors accidentally open at the same time.
A correct system of airlocks must guarantee, through air curtains, pressure differentials that prevent the entry of contaminants into adjacent areas, especially in hospitals, in isolation areas. Positive pressure rooms are designed to keep a patient vulnerable from a safe separation of contamination from the outside (immuno-depressed or immuno-deficient, burned unit …), by pumping clean air and filtering continuously within the room.
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