Nowadays, People spend more than 80% of their time in an indoor environment, as there is a strong relation between the quality of this environment and human health and safety.
There is also a strong relation between health problems facing the human beings and the poor indoor environment in the building in which they live.
According to the World Health Organization (WHO), 30% of buildings in the world are sick or not healthy buildings, due to the fact that their inhabitants suffer from many diseases, whereas main causes are harmful emissions from used building materials, and pollutants from outside to inside the building.
That the internal air and what it causes of diseases and the extent of the impact of such diseases on human beings, which is known as the syndrome of buildings disease indoor air pollution, ie inside the buildings (offices, schools, companies, hospitals, etc.), is not less dangerous than outdoor air pollution and is considered the most dangerous for its direct impact on inhabitants who are living in buildings in where air contains contaminants at a concentration greater than permissible.
Volatile organic compounds, microbial contaminants, various gases, dust particles, indoor atmosphere in addition to lack of dampness control shall lead to the growth of mold, bacteria, viruses and other microorganisms that have a significant impact on the quality of the indoor environment.
The World Health Organization indicated that many of the microbiological substances contaminated of air are found in the indoor air including fungus mold, viruses, bacteria, pollen grains, bacteria and its derivatives.
Formaldehyde produced from processed and varnished wood, insulated foams and radon resulting from stones, cement, soil, water, fine dust and bacteriological materials due to poor ventilation and concentration of pollutants in a small space.
Using pozzolanic block with internal plaster of the same type (Thermo plaster), and as zeolite material has unique filtering properties, in addition to high ability to absorbing free ammonia and other unpleasant odors, and toxic and non-toxic gases. The high capacity of zeolite in ion exchange, especially with heavy metals, cationites, citronium 90, cesium 137, and other radioactive isotopes in addition to its retention and cracking through crystal formation.
It works as filters to refine gases, remove impurities such as Carbon monoxide, Carbon dioxide, Sulfur dioxide and water vapor, in addition to rebuild it to become pure air, based on the very important characteristic of the pozzolana in ion exchange and ammoniac selection so its ability to control the ammonia gas is very high by removing 97%. , in addition to the removal of nickel ions by 98.8% and lead by 57.4% as these metals break the ecosystem of those places so it is necessary to be removed. the low acid function accelerates the removal of contaminants mineral, using the inexpensive and safe ion exchange method, and reverse the expensive and unsafe methods Such as electrolysis, reverse osmotic pressure or chemical deposition.