In particular, the opinion on the great social, current (and future) usefulness of controlled mechanical ventilation (CMV), integrated into public transport or introduced into public places, classrooms, etc., is very much to be welcomed.
It is an accepted fact, based on the various opinions expressed by experts in recent months, that it is necessary to ensure a regular exchange of air in all rooms, by means of natural ventilation (i.e. frequent opening of doors/windows), but it is often not possible to guarantee this type of ventilation when people are present/crowded. Environmental situations that do not allow this are, for example, the proximity of the rooms to roads or particularly busy and/or noisy areas or in the presence of environments that must necessarily guarantee a controlled microclimate (hospital wards).
In these cases, therefore, the only alternative is to install a mechanical ventilation system with enhanced performance such as KASPIR.
However, attention must be paid to the fact that the known controlled mechanical ventilation systems are not all of the same value for combating Covid.
More precisely, a general exchange of indoor air to sanitise the air is not sufficient to achieve an efficient result.