Some parts of molecules of the atmospheric air that we breathe always carry electrical charges. The process of obtaining electric charge by air molecules is called air ionization, and a charged molecule is called a light air ion, or air-ion. If a charged molecule of air settles on an water drop or a dust particle, it also obtains electric charge, and is then called a heavy "ion". There're two polarities of electricity, positive and negative, and, respectively, two types of ions - positive and negative ones.
In rural location or in the mountains in a sunny day the air usually contains about 800-1000 light air ions of both polarities in a cubic centimeter. At some resorts the concentration of light air ions rises even higher, up to tens thousand in a cubic centimeter.
And whereas light ions (notably, negative ions) are health-giving, heavy "ions", on the opposite, are harmful. Noticeably, clean air doesn't contain heavy "ions" at all. But what's going on in our cities? In a big city, the concentration of light air ions drops to 50-100 ions per cubic centimeter, while the concentration of heavy "ions", on the opposite, rises to tens thousand in a cubic centimeter.
It has been established that animals breathing the air filtered through a wadded tampon fall ill and eventually perish, owing to the absence of air ions (in such air animals experience the air-ionic starvation). If after filtering the air is supplied with air-ions, then animals feel well.
Outdoor air usually enters the room through ventilating system. On its way to the room it looses light air ions, especially negatively charged ones. Air conditioners also distort electric formula of air, and the filtration through porous, wadded, gauze, oil and other filters produces fully de-ionized air!
Domestic ionization and ionization of workplaces had gotten special importance since it was established that a human is the source of a huge quantity of heavy "ions" (up to 500 thousand in a cubic centimeter of exhaled air). Hence, in every room where people spend much time the number of oxygen ions nears zero. And as a person on the average spends about 90% of his/her life indoors, he/she experiences chronic aero-ionic starvation. This leads to auto-poisoning a person with products of partial oxidation, to dystrophy and atrophy of its organs and tissues, contributes to premature aging and various diseases.
The author of the article - Aydar Tuktagulov