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ospitals around the globe employ cascade ventilation systems to maintain positive pressurisation of operating theatres. This protects the patients and staff from the ingress of infectious agents, dust and bacteria by providing an invisible barrier of positive pressure when doors within these rooms are opened.
This is a well-established principle of hygiene and infection control is championed and used the world over.
This system can also be employed in Isolation Rooms, Aseptic Suites, Endoscopy suites, Pharmacies, Cardiac Catheter Laboratories, Sterile Services Departments, Interventional Radiology Suites, CAT 3 Laboratories and other specialist areas which may require infectious control.
Apreco have been acknowledged for their assistance in contributing to Health Technical Memorandum (HTM 03-01) which supercedes HTM 2025. Apreco have also assisted with the validation of Isolation Room design following Health Building Notes (HBN 4 : Supplement 1).
Apreco’s range of VARI-centric Air Pressure Stabilisers are self contained units requiring no external power source to operate relying solely on pressure differentials to mechincally operate.
Fire and smoke/Fire rated Stabilisers are available for installations where fire smoke/fire integrity must be maintained.
When following the guidelines of HBN4 Supplement 1: Isolation facilites; Apreco’s VARI-centric Air Pressure Stabilisers are utilised to accurately maintain the positive pressurisation lobby ensuring that air from the corridor does not enter the isolation room, and that air from the room does not escape into the corridor. This basic but effective design enables the suite to be used for both source and protective isolation without the need for switchable ventilation or special training for staff. Importantly it also provides safe isolation for those patients whose exact condition is unknown.