If the situation of schools in our country is examined in terms of IHK, it will be seen that there are very serious differences between schools in terms of building quality and facilities. Many of the private schools have achieved a certain standard in terms of physical infrastructure. Although thermal comfort (heating/cooling) is provided in these schools, there are serious deficiencies in terms of IHC. Since local heating devices are still used in some of the rural, village and city schools with crowded classrooms, it would be fantasy to talk about IHK in these schools.

On busy winter days when block classes are held, students in the crowded classrooms get sleepy and the efficiency of the teacher decreases due to the lack of O2, excessive increase in the relative humidity and the smell of sweat. When the dust and chalk dust that students remove from the classroom floor in primary schools are added to this situation, the situation becomes a disaster.

Today, it has been stated in some international meetings that there is no more efficient method than ventilation, other than source control, to increase indoor air quality. According to a study conducted in the USA, the cost of increasing the amount of ventilation from 2.5 changes to 10 changes is 10 dollars per person, while the profitability obtained due to disease expenditures is 43 dollars.

Therefore, the central ventilation system should be added to the projects of the newly built school buildings, taking into account the indoor air quality.

It is possible to reduce IHC problems with some practical solutions that can be applied to existing school buildings:
 Fresh and exhaust air ducts can be installed in the corridors where the classrooms are located, and a ventilation system can be made for each floor to be independent or central. In this system, 0 outdoor air can be used by applying heat recovery and coil pre-heating.
 Indoor air quality can be improved by placing local heat/energy recovery ventilation devices by the window in the classrooms. This system is installed much more economically than the central system.
 In schools where mechanical ventilation cannot be installed, the classrooms should be ventilated at every break, and if possible, half-opened windows should be left open during the lesson.