Negative ions have excellent effects of purifying and removing dust, reducing the harm of second-hand smoke, improving the prevention of respiratory diseases, improving sleep, resisting oxidation, preventing aging, scavenging free radicals in the body, and reducing blood viscosity. They enjoy the reputation of vitamine milk, air vitamin, longevity factor and air vitamin in the medical field.
What are negative ions? Generally speaking, negative ions are negative ions. After the uncharged gas molecules in the atmosphere are affected by some factors, such as ultraviolet radiation, rain decomposition or spray impact, the electrons in the outer layer of the molecules get rid of the constraints of the nucleus and get out of orbit. At this time, the gas molecules become positive ions, and the electrons come out to combine with other neutral molecules to form negative ions.
What are negative oxygen ions? Simply put, oxygen molecules capture electrons.
The molecular formula of ions is O2-(H2O)n, or OH-(H2O)n, or CO4-(H2O) N. Air negative ions with environmental protection function mainly refer to the first two kinds of small particle size negative ions. Simply put, it refers to negatively charged oxygen ions, which are colorless and tasteless. Air is made up of countless molecules and atoms. When molecules or atoms in the air lose or gain electrons, they form charged particles, called ions; Those with positive charges are called positive ions and those with negative charges are called negative ions. Negative ions are negatively charged gas ions in the air. Most of the free electrons produced by ionization of air molecules under high pressure or strong rays are obtained from oxygen. Therefore, air negative ions are often collectively referred to as "negative oxygen ions". Small particle size negative ions, also called light ions or small ions, are equivalent to air negative ions in nature, and some data also call them ecological negative ions. It has the characteristics of long migration distance and high activity. According to their migration distance and particle size, air negative ions can be divided into three types: large, medium and small. Small ions, also known as light ions, have good biological activity and are beneficial to people. Only small ions or small ion groups can enter the organism.
Medical research shows that it is small particle size negative ions that have medical and health care effects on human body. Because only negative ions with small particle size can easily penetrate the blood-brain barrier of human body and exert their biological effects. Natural air negative ions, because of the high proportion of negative ions with small particle size, have created many longevity villages. Because of its high activity and long migration distance, small-particle negative ions form a negative ion bath environment over the longevity area. At present, many negative ion household appliances are not effective because it is difficult to produce ecological negative ions with small particle size by using traditional negative ion generation technology. It has general medical and health care effects on human body, only dust removal and dust reduction, and is generally used in the field of air purification. The book Environment, Health and Negative Oxygen Ions written by Professor Lin Jinming, a doctoral supervisor in Tsinghua University and an expert in Chinese Academy of Sciences, is defined as follows:
Positive ions and negative ions in the air can be divided into large, medium and small ions according to their mobility. The ion mobility greater than 0.4cm2/(v s) is small ion, the ion mobility less than 0.04cm2/(v s) is large ion, and the middle plasma is in between. Charged atomic groups or molecular groups close to molecular size belong to small air ions. These small air ions move fast, collide with each other in the atmosphere, and constantly gather to form large ions or middle ions.
Only small ions or small ion groups can enter the body. Among them, small negative ions, or small negative ion groups, have good biological activity.
Air ions can be divided into light, medium and heavy ions by volume. Light ions move faster in the electric field, which is1~ 2cm2/v.s; In natural or ordinary environment, the mobility is greater than 0.4 cm2/(V.s), and the heavy ions move slowly in the electric field, only 0.0005cm2/v.s In natural or ordinary environment, the negative ions with particle size less than 0.04 cm2/(V.s) are larger, and the size and activity of the middle ions are between those of light and heavy ions. However, negative ions with smaller particle size have good biological activity and easily enter the human body through the blood-brain barrier to exert their biological effects. At present, the traditional negative ion generation technology cannot generate negative ions with small particle size, and only the negative ion converter technology and nano-fullerene negative ion releaser technology can generate negative ions with small particle size.