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UCV HEPA differential velocities

Unidirectional airflow with decreasing air velocity from the centre

Aseptic for the patient, Safe for the medical staff, Comfort for the surgical team

DIF-OT is a ceiling-mounted HEPA filter system for Ultra Clean Ventilation (UCV) specifically designed for operating theatres to meet the highest cleanness during critical surgery like orthopedics, heart surgery, transplants and neurosurgery.

The groundbreaking system provides differential velocities decreasing from the centre towards the perimeter of the active surface, ensuring a constant and effective purging of the surgery area.


  • Self-balanced differential airflow velocities.

  • No air induction.

  • Effective ultra-clean central airflow to protect the patient from airborne particles.

  • Draft-free airflow velocities around the surgical table.

  • Utmost flexibility in positioning light stem and suspended equipment.

  • The ultimate solution for hybrid operating rooms.

  • The highest airflow uniformity thanks to the downstream equalizer.

  • Colour code filters for correct filter installation. 

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Now BIM - REVIT Ready!​
Now BIM - REVIT Ready!​

Designing an operating theatre just got easier! 

TechIN is excited to introduce the REVIT families of our exclusive partner SagiCofim.

Watch the video and get to know how in only 6 minutes you can integrate our supply and exhaust systems solutions to your project.

Supply Systems

  • Unidirectional flow OR canopies (OR unidirectional flow)

Exhaust Systems

  • Exhaust grilles and airflow dimensioning

  • Mechanically self-balanced to 3 different air velocities, decreasing air velocities from the ceiling centre.

  • Suitable for Operating Theatres with Colony Forming Units concentration less than 10 CFU / m³ in operating conditions.

  • Effective removal of contaminants thanks to the combined action of the velocity profile and the air extraction points located on the four corners of the room.

  • Guarantee environmental comfort for the surgical team.

  • Low noise level.

  • Structure in stainless steel for maximum resistance to sterilizing agents.

  • System designed for use in total safety without need for perimeter rigid curtains.

  • ISO Class 5 Operational.

  • The best choice for new projects and for retrofit.

  • Modular design: it can be integrated into different size environments.

  • The absence of barriers and side curtains facilitate the equipment handling in the room.