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The air we breathe

Natural ventilation by opening a window is, of course, often helpful and always affordable. Unfortunately, there are numerous factors that force you to forgo the natural ventilation. These are construction restrictions, road noise, air pollution, draughts etc. Quite often it is even irresponsible to open the windows for health reasons. The type of aeration and venting systems also depends on the size of the room and the structural conditions. PÖTTER-KLIMA designs, supplies and installs your equipment, which is particularly suited for your situation. In any case, it is technically mature and reliable in operation and can be unobtrusively integrated into the image of each façade and interior design.

For these reasons, ventilation systems have long taken a solid position in the building technology. They have become indispensable, and their fields of application are multifaceted. Whether in sports halls, sales rooms, restaurants, offices or bedrooms, fresh and clean air is needed everywhere. It does not only make you feel comfortable, it also stimulates your performance.

The group of ventilation and air-conditioning systems also includes the external air curtain systems and the passage heating systems. You have certainly experienced them before, for instance, when entering a department store in winter. These systems prevent cold air ingress into the sales areas. They can be integrated into automatic door systems or retrofitted. In all PÖTTER-KLIMA installations, the statutory DIN (German Institute for Standardization) regulations and/or VDI (Association of German Engineers’) guidelines are taken into account.

Natural or mechanical ventilation Both types of ventilation are intended to ensure sufficient air exchange as well as to dissipate all internal and external heat and substance loads, which can adversely affect the room climate. Natural ventilation means slot ventilation or intensive airing by partially opening the windows as well as cross ventilation through partial or complete opening of opposite windows. A special case is the so-called chimney effect. Due to the thermal energy available in stairwells, patios and atria, the air can flow vertically through the building. Below we provide the most important facts about the various types of ventilation.

Systems for central full air-conditioningThe room climate is adapted to the working and production conditions all year round. The air is warmed in winter, cooled in summer, additionally humidified or dehumidified, and cleaned. For each of the work stages, specific devices are required, such as filters, humidifiers, heating, cooling, and dehumidifiers. All devices are normally put together in a large aggregate, through which the air flows before it reaches the working areas.
Systems for central partial airconditioningThese systems do not cover all the work steps as the case is with full air-conditioning. The air, which is siphoned in from the outside, is usually filtered and heated or cooled. They also include simple ventilation systems, in which the air is merely filtered.


Natural ventilation: 


Continuous ventilation 
by tilting a window in a room of about 20 m2
Air exchange per hour: 0.2 to 2 times depending on the wind direction Impact on room air: very good room air, at least 0.8-fold air exchange per hour High energy costs
Intensive airing 
through fully open window about 5 times a day in the room (about 20 m2))
Air exchange per hour: 0.3 to 4-times depending on the wind direction Impact on room air: Sufficiently good room air Normal energy costs


Mechanical ventilation: 


Decentralized room ventilation 
(Wall and window units) with heat exchanger  
Air exchange per hour: 0.4 to 0.8-fold Impact on room air: Good room air Energy savings of up to 50% compared to intensive airing
Partial and full air conditioningAir exchange per hour: as needed Impact on room air: Very good room air, depending, however, on the condition of the system; No disadvantages with regular maintenance