HIGH PERFORMANCE PROFESSIONAL AIR PURIFIERS
CERTIFICATIONS, ANALYSIS AND TECHNICAL STUDIES OF OUR PHOTOCATALYSIS REACTORS (PCO), BY DIFFERENT MINISTRIES, UNIVERSITIES, BIOCHEMISTRY LABORATORIES, MEDICAL ASSOCIATIONS AND APPROVED CERTIFIERS.
CERTIFICATIONS, ANALYSIS AND TECHNICAL STUDIES OF THE COLD PLASMA GENERATORS THAT WE INSTALL IN OUR SYSTEMS BY DIFFERENT MINISTRIES, BIOCHEMISTRY LABORATORIES AND APPROVED CERTIFIERS
REGULATION OF THERMAL INSTALLATIONS IN BUILDINGS RIT,E
It is the Regulation of Thermal Installations in Buildings that prescribes the ventilation flows in a room, dependency or space according to its use. The classrooms belong to the IDA2 category; being the most demanding category IDA1, a category to which all the spaces and buildings destined for sanitary use and children's activities (nurseries, playgrounds...) belong. As a preventive measure, it seems logical to adopt the IDA1 level for all buildings for the duration of the coronavirus pandemic. If this level of ventilation (IDA1) is adopted, a classroom would need a minimum ventilation flow per student of 72 m3/h. A classroom with 20 students would need a ventilation flow of 1,440 m3/h. If the classroom has an area of 140 m2 and a height of 3 meters, this ventilation flow guarantees that the air inside it is renewed every 17.5 minutes; three and a half times every hour. Some studies on COVID-19 suggest that it can remain in the air for up to three hours.
The combination of the safety distance (1.5 m) together with a constant renewal of the interior air (filtered ventilation flow) will minimize the risk of contagion until it becomes insignificant.
DISADVANTAGES OF OTHER ACTIVE PURIFICATION SYSTEMS SUCH AS UV-C RADIATION
AND OZONE IN HIGH-PERFORMANCE AIR PURIFIERS.
Official studies on exposure times and radiation doses with UVC on viruses and pathogens in air decontamination devices and their drawbacks.
Extreme oxidizing values of ozone, complicated use and toxicity to living beings.
REPORTS, STUDIES AND INVESTIGATION OF:
"PAGE 42"
CONCLUSION OF DISADVANTAGES OF DIFFERENT AUTONOMOUS-ACTIVE SYSTEMS FOR DISINFECTION
AERIAL WITH UV-C FOR ITS REQUIRED EXPOSURE TIMES IN FRONT OF THE ACTIVE PHOTOCATALYSIS.
In the most optimistic studies regarding the applications of germicidal light in inactivation of viruses and pathogens such as the eSignify studio (Philips) and Boston Universitywould require constant direct exposure of
22 mJs/cm2 = 6111 Wh, with a minimum duration of 25 seconds depending on the temperature, humidity and the surface or volatile particle to which it was attached, within a circuit of moving air or fluid.
SOURCE OF FLUID PARAMETERS
To achieve a flow rate of 360 m3/h / 120 m2/h:
6m3/minute of air flow in +-500 mm of duct diameter = 0.0084883 meters/s of air speed.
As is evident, this value is well below the 25 seconds that will be necessary depending on the radiation dose that the SARS-CoV needs for direct UV-C,A exposure time.
USE OF ULTRAVIOLET RADIATION FOR DISINFECTION OF SARS-COV-2 VIRUSES (PAGE 5)
"Many factors such as the distance from the emitting focus to the surface to be treated or differences in the reflectivity of the surfaces, can generate significant differences in the application times necessary to sanitize the premises. These times range from 6 minutes to several hours. Therefore So much is an important point to consider."
In this way, its infeasibility for its effective and practical use in autonomous-active devices is demonstrated.
of purifiers with target air flow.
