Back in September, guidelines on ventilation in schools: this is what the experts predict

The guidelines on purification and sanitization devices as well as minimum air quality standards in schools are coming soon.
This is a much awaited provision that is 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 schools regarding sanitizing, sanitizing and air purification devices.

The experts write that the choice “on whether to use” the technical solution must be made by qualified personnel in consideration of the risk assessment and must also take into account the objectives to be achieved (eg air exchange, pathogenic load reduction in the air and / or particulate matter), in the case of using mobile devices, if the use is continuous or when 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 issued national standards aimed at regulating the technical aspects related to the operation of purification / purification technologies by proceeding with their mandatory registration.

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

As general recommendationsdevices / appliances if intended for school environments, they must be clearly identifiable, safe, effective, usable in the presence of bystanders if provided for by the manufacturer and only in safe conditionsequipped, where necessary, with devices / sensors in (by-products) and, as well as with main microclimatic parameters.

Multi-purpose appliances can also be used (e.g. tools that guarantee both air exchange and / or particulate 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 sanitation.

Further requirements to be considered 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 costs of components, disposal of filters, lamps, etc.); low noise emission levels / classes; minimal environmental impact (e.g. replacement of filters, lamps and sensors).

The devices chosen should always be accompanied by documentation certifying specific tests that demonstrate: efficacy and safety in the conditions of use, in environments similar to the school environments in which they intend to install (eg volume of tested environments, air exchange rates, occupancy model); duration of operation that affects the ability to lower the concentration of pollutants; frequency of maintenance for correct operation; noise level / class dB, during operation at maximum air flow.

As reported by the Undersecretary for Education, Rossano Sassoeven if the classrooms were equipped with ventilation devices, students, teachers and workers would not be exempted from observing the safety protocols which provide, for example, to wear masks if you are unable to maintain physical distance.

The document, however, as specified by several parties, in reality lacks operational indications for school managers in view of the reopening of the school year.

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

Back in September, guidelines on ventilation in schools: this is what the experts predict – Orizzonte Scuola Notizie