Indoor air quality is crucial for people's well-being and health, because pollutants such as fine dust, pollen and pathogens can compromise the healthiness of the very spaces where we now spend most of our day. Heat Recovery Ventilation systems (HRV) represent the most effective solution to guarantee clean air at all times and reduce the risks associated with indoor pollutants.

The reference practice UNI/PdR 161:2024

In July 2024, UNI/PdR 161:2024 was published, a reference practice that provides guidelines for improving indoor air quality and reducing biological risks through the use of filtration systems in HVAC (Heating, Ventilation, Air Conditioning) devices. The practice emphasises the importance of efficient filtration to minimise the presence of bioaerosols and other pollutants in indoor environments.

How filtration works in HRV systems

HRV systems are designed to ensure continuous air exchange, maintaining a healthy and comfortable environment. Filtration takes place through high-efficiency filters that capture particles of different sizes, from fine dust to pollen. For example, ISO ePM1 classification filters are able to stop at least 55% of PM1 particles, preventing pollutants and allergens from entering the indoor environment.

In the picture above, we compare the condition of an unused filter with a filter that has been used for about 3 months in an office.

How filtration works in HRV systems

• Improved air quality: HRV systems filter and completely replace the air, reducing the concentration of pollutants and allergens.
• Mould and moisture prevention: adequate air exchange prevents the formation of mould and moisture accumulation, contributing to the preservation of the building and the well-being of the occupants.
• Energy efficiency: thanks to heat recovery, HRV systems reduce heating and air conditioning costs, improving the energy performance of buildings.
• Relief for allergy sufferers: effective filtration of incoming air helps reduce allergy symptoms, creating a healthier environment for occupants.

Why choose an HRV system

Investing in a Heat Recovery Ventilation system is a strategic choice to improve indoor air quality, protect health and increase the energy efficiency of buildings. Compliance with UNI/PdR 161:2024 guidelines ensures the adoption of best practice in the industry, helping to create healthier and more comfortable indoor environments.

This is why we have developed a whole range of solutions - the Ariosa machines and the AriaSilent distribution system - to meet all installation needs in residential and commercial contexts, offices and public premises.

They all have in common the utmost attention to healthiness and energy efficiency, simplicity in terms of both installation and use for the end user, smart management and the latest technological equipment, suitable for managing even remotely any temperature and humidity conditions.