negative air pressure system to reduce infections in hospital rooms


The Inno4COV-19 Evaluation Committee has given a positive assessment of the VIRTUOSO project’s candidacy.

NICFA will therefore receive European funding to study and implement this project.


The main aim of VIRTUOSO is to reduce the number of SARS-CoV-2 infections due to health care-associated transmission and consequently reduce the number of healthcare workers affected by COVID19.

To achieve this, VIRTUOSO aims to develop a ventilation system to isolate hospital rooms hosting infectious patients.

Complete isolation of the contaminated environment can be scientifically achieved by depressurizing it, thus obtaining a lower pressure inside than outside the hospital room.
  • Non-invasive installation
  • Activation based on actual necessity
  • Operational safety
  • Continuous monitoring of parameters
  • Easy to use
  • Economical

Composition of the system

NICFA EVS ventilation unit with absolute filters in both suction and delivery, which sucks and filters the air from the room while maintaining negative pressure

NICFA NodeIO control unit with: integrated management software, door opening control sensor, fan speed control and corridor warning lights;

NICFA Touch HMI, which displays the system parameters and allows the control/set-up of the system, subject to entry of a security code;

• Air intake for each bed in the patient’s room; 

• An air blade above the door, fed by filtered recirculated air, which creates a barrier to limit the escape of infectious air. It also allows VIRTUOSO to detect a drop in pressure when the door is open and modulate the air exchange rate.