Ventilation of residential spaces one of the most important topics of ISH 2023

Ventilation of residential spaces was one of the strongest and most visible topics at ISH 2023 in Frankfurt, the world’s leading trade fair for HVAC, heating technologies, and renewable energy. Throughout the fair, manufacturers and experts highlighted a clear shift. Indoor air quality is no longer “nice to have.” Instead, it is increasingly treated as a core requirement for healthy, energy-efficient homes.

At the same time, the message was consistent. Better ventilation is not only about comfort. It is also about reducing exposure to indoor pollutants, controlling CO₂, and supporting climate goals through smarter energy use.

Marquis Intelligence Partners at ISH 2023

At ISH 2023, premium ventilation and air purification solutions were presented by renowned German manufacturers with whom Marquis Intelligence has long-term cooperation. These partners showcased programmable residential ventilation systems with highly energy-efficient heat recovery. In addition, they introduced air purification technologies using both conventional and advanced methods.

Notably, the focus was not on isolated devices. Instead, the emphasis was on integrated systems. These systems combine ventilation, filtration, control, and energy recovery into one coordinated solution. As a result, indoor air can be continuously refreshed while energy losses remain low.

Controlling Indoor CO₂ Emissions and Saving Energy

One central theme at ISH 2023 was clear. Ventilation and indoor air quality contribute directly to reducing CO₂ emissions and saving energy. Efficient heat recovery ventilation can lower ventilation-related heat losses. Meanwhile, innovative control strategies can adjust airflow to real needs. Therefore, buildings can remain comfortable and healthy while using less energy.

In other words, ventilation practically supports climate targets. It improves the indoor environment. At the same time, it reduces unnecessary energy consumption.

More information on ISH topics and focus areas is available through official ISH channels.

Why Residential Ventilation Is Essential for Health

Air is essential for life. However, indoor air quality in residential buildings has often been underestimated. In many homes, ventilation was treated as an occasional action – simply opening windows. Yet this approach is not reliable. It depends on outdoor conditions, habits, noise, weather, and pollution.

Over the past few years, awareness has changed. People have seen how vital hygienic indoor air supply is. Today, we understand that indoor air must be managed deliberately. Otherwise, it accumulates:

• CO₂ from breathing

• particles and pollutants from outdoors and indoor sources

• odors and moisture that affect comfort and building health

• airborne pathogens that increase health risks in crowded or poorly ventilated rooms.

Elevated CO₂ levels in a house or apartment most often indicate insufficient air exchange. Carbon dioxide is produced primarily by people and pets when they breathe. Its concentration indoors is therefore a practical indicator of ventilation quality. If CO₂ levels are elevated, this usually means that ventilation is not sufficient.

See also: CO₂ in Your Home – Is It There and Where Does It Actually Come From

Therefore, the conclusion is straightforward. Residential ventilation is crucial for health, comfort, and long-term well-being.

Benefits of Modern Residential Ventilation Systems

Modern residential ventilation systems with effective air purification provide high-quality indoor air without the need to open windows. This matters, especially in urban areas. It also matters during the heating season and in regions with frequent episodes of outdoor pollution.

Turnkey Indoor Air Quality Solutions by Marquis Intelligence

Marquis Intelligence is a Serbia-based company specializing in indoor air quality, ventilation systems, and air purification solutions. We design and deliver comprehensive turnkey solutions for residential buildings, encompassing apartments, houses, and other types of properties. We also work on complex projects where ventilation performance, comfort, and long-term reliability matter.

See also: Residential Ventilation by Marquis Intelligence
See also: Mini Case Study: Apartment Ventilation in Belgrade
See also: Decentralized Ventilation Systems in the Home: Advantages and Limitations of Application