Avidicare Opragon is a unique ventilation system for ultra-clean air in operating theaters


Opragon systems are designed for installation in the false ceiling in ORs used for infection sensitive surgery. There are different versions available for hybrid ORs as well as instrument preparation rooms. The units are supplied with HEPA-filtered air from a standard external air handling unit equipped with a heating/cooling coil. The air is supplied to the room both in the central Opragon unit and in the peripherally placed airshowers. The unique system supplies cooler air in the center than in the peripheral airshowers, which creates ultra-clean air in the whole room. This is made possible by effectively breaking the convection currents from the staff around the patient and actively transporting away the bacteria carrying particles before they can whirl around the room and contaminate the wound or the sterile instruments. In a complete Opragon installation (see example below), less than 5 cfu/m³. can be maintained in the surgical working area and less than 10 cfu/m³. in the whole room (provided that the other hygiene and clothing requirements are also met). This creates a more flexible working space in the OR.

Less airborne bacteria means less infections

An operating theater is filled with surgical staff, each of them shedding around 10,000 skin particles per minute. About 10% of these particles carry bacteria. Thus, each person sheds thousands of bacterial particles per minute. 

Sir John Charnley performed a large scientific study of surgical site infections (SSI). Based on 6000+ patients, he saw that less bacteria in the OR air reduced SSI occurrence during orthopedic surgery – from 8% to 1%. Lidwell et al confirmed the findings with 8000 patients in several countries in a large study. In summary – less bacteria in the OR air leads to lower risk for SSIs.

The most comfortable system for surgical staff

The surgical staff needs to have optimal working conditions to be able to perform their important roles. This creates a need for a thoroughly calibrated air conditioning and ventilation system. It is especially challenging to combine with the many air changes needed to perform safe surgery. The Opragon has a proven surgical staff satisfaction due to the minimal draught created when the air is released – not pushed – into the rooms. This leads to low noise level and next to no wind chill effect.

Sustainable and competitive life-time cost

Opragon systems can offer 30% lower cost of ownership compared to standard laminar airflow systems, as stated by an article in the Journal of Hospital Infection (Oct 2017). The Opragon boasts a low energycost without compromising efficiency, which is unique compared to other similar systems.

The Opragon system has a flexible design that is tailor-made for each installation. The minimum space requirement between the structural and false ceilings is 30 cm (approx. 12 inches), which allows for installations in rooms with limited space in both new and refurbished units. This makes it easy to fit with other parts of the OR construction. 

The Opragon is easy to maintain after installation which reduces total life-time cost – an important factor for the solid customer satisfaction among the clinics that have been using the Opragon for up to ten years so far.

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