Guidelines for school ventilation – here’s what the experts predict

The guidelines for cleaning and disinfection devices as well as minimum air quality standards in schools are coming soon.
This is a highly anticipated provision launched by a team composed of the National Center for Chemicals and Consumer Protection, Department of Infectious Diseases of the Istituto Superiore di Sanità.

Based on what was collected by School horizonthe technicians will give indications to the schools regarding disinfection, disinfection and air purification devices.

The choice of “feasibility” of the technical solution must be made by qualified personnel taking into account the risk assessment and must also take into account the objectives to be achieved (eg air exchange, reduction of airborne pathogens and / or particulate matter), in cases of use of mobile devices if the use is continuous or as needed.

The requirements and information represent a reference for the selection of systems and for the procedures to be adopted within the school structures. Some Member States (eg Belgium and Germany) have recently promoted initiatives and adopted national standards aimed at regulating the technical aspects of the operation of purification / purification technologies by continuing with their mandatory registration.

Belgium introduced in its legislation, provisions setting out the requirements and conditions that manufacturers of air purification devices must follow in order to market products intended for public spaces as part of the fight against COVID-19. Germany has also issued a reference standard for technical requirements and specifications for manufacturers / marketers of mobile air purifiers to reduce the transmission of infectious diseases via aerosols.

As general recommendationsdevices / apparatus, if intended for school environments, they must be clearly identifiable, safe, effective, usable in the presence of spectators, if specified by the manufacturer and only in safe conditions;equipped, where necessary, with devices / sensors in (by-products) and, as well as with the most important microclimatic parameters.

Multifunction devices can also be used (eg tools that guarantee both air exchange and / or particle filtration and / or reduction of the pathogen load and / or reduction of organic substances or other chemical pollutants) also combined with products / systems for surface remediation.

Additional requirements to consider are: easy to use and install; low activation costs, maintenance operations to guarantee the initial and continuous performance of the devices (eg reduced electrical consumption and / or reduced component costs, disposal of filters, lamps, etc.); low noise emission levels / classes; minimal environmental impact (eg replacement of filters, lamps and sensors).

The selected devices must always be accompanied by documentation certifying specific tests that show: efficiency and safety under the conditions of use, in environments similar to the school environments they intend to install in (eg the amount of environments tested, air exchange conditions, coating model); duration of operation affecting the ability to lower the concentration of pollutants; frequency of maintenance for proper operation; noise level / class dB, during operation at maximum airflow.

As pointed out by the Deputy Secretary of Education, Rossano Sasso, students, teachers and workers, even if the classrooms were equipped with ventilation devices, would not be exempt from complying with the safety protocols that allow for wearing masks, for example, if you are unable to to keep physical distance.

Guidelines for ventilation in schools, Sasso: “Hope unloads a barrel on school leaders, an unacceptable thing”

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