Every day we spend a lot of our day in buildings. Most work in someone,

either this is an office, a super market, a restaurant, etc., so we spend at least 1/3 of our day in this space.

We usually observe architectural design, interior decoration, colors, lighting and more.

Have you ever wondered, however, about the air you inhale?

Where does it come from? Is it clean?

Large HVAC systems are usually installed in large buildings, which are responsible for maintaining the necessary comfort conditions.

According to international standards, the success of these conditions takes into account the type of space (offices, schools, shops, etc.) the number of people, the time of year and many other factors.

In particular, these systems refer to the following areas

• Heating
• Ventilation
• Air Conditioning

The key points are keeping both the right temperature and the quality of the indoor air.

In the most common form, there are refrigerating machines and boilers for cooling and heating fluid (water) respectively, which in turn circulates in central air-handling units (AHU) and fan coils (FCUs) where cold or hot air is produced.

The whole network also introduces the introduction of fresh air combined with the recirculation of the existing one, where they pass through suitable filters for their better quality.

To place such systems is required proper design which will cover the corresponding needs of the building, installation by qualified personnel as well as proper maintenance according to the manufacturer’s specifications for their proper operation.