THE COVID-19 HEALTH EMERGENCY IS LEADING TO PROFOUND TRANSFORMATIONS IN PEOPLE’S SOCIETY AND LIFESTYLES. WE ARE WITNESSING THE RAPID EMERGENCE OF NEW ATTITUDES, NEW SOCIAL PRACTICES AND SPECIFIC INDIVIDUAL BEHAVIOURS TO LIMIT THE SPREAD OF THE VIRUS AND TO ENSURE HEALTH AND SAFETY IN THE DIFFERENT ENVIRONMENTS OF LIFE. WHILE THE ECONOMIC AND SOCIAL IMPACT OF PRECAUTIONARY MEASURES IS EXTREMELY EVIDENT IN THE EVENT OF TOTAL LOCKDOWN OR CLOSURE OF A SINGLE ACTIVITY, THE IMPACT OF THE PHENOMENON IS LESS VISIBLE IN OTHER SITUATIONS. FOR EXAMPLE, THE VENTILATION OF THE PREMISES THROUGH THE OPENING OF DOORS AND/OR WINDOWS CAN HIDE AN INCREASE IN OPERATING COSTS DUE TO HIGHER ENERGY CONSUMPTION FOR CONTINUOUS RE-AIR CONDITIONING. IN ADDITION, IN SPITE OF GOOD INTENTIONS, AN INCORRECT CHOICE OR INCORRECT USE OF UV-C OR ION-EMITTING DEVICES FOR THE SANITISATION OF OBJECTS COULD PROVE EXTREMELY DANGEROUS FOR THE LOST