Aeraulic systems designed to provide comfort

Recommended filters in accordance with UNI 10339:
Unlike the current UNI 10339 standard, its updated version identifies the minimum filtering class not just based on the building’s intended use, but also in relation to the desired quality level for indoor air and the available outdoor air quality.
Moreover, if there are known specific pollutants, a reduction system associated with the additional ventilation circuit must include at least a filter with a certified effectiveness on such pollutants.
The UNI 10339 standard provides information also about when the filter must be changed:
“the replacement of mechanical particulate filters usually depends on clogging, which is indicated by the final pressure drops. However, for the purposes of hygiene pre-filters and filters must be inspected periodically in accordance with current laws and the instructions of the manufacturer. They must be replaced when biological contamination appears, even if the pressured drops are still considered acceptable”.