With the deterioration of air quality in recent years, car air purifiers have become a hot product in automotive supplies. Car air purifiers are divided into filter type, electrostatic dust collection type, ozone, and plasma cluster purifier. The role of the car air purifier and the role of indoor air purifier are comparable, can filter out harmful substances in the air, ensure the quality of fresh air delivery, to protect human health. So what is the principle of car air purifier function?
Types of car air purifiers
1. Filter-type car air purifier
Filter-type car air purifiers can effectively purify the dust, formaldehyde, benzene, bacteria and other harmful substances in the car, but the filter-type car air purifier only purifies the passively inhaled air, and the car air purifier due to the limitation of power, generally do not have enough power of the wind machine, can not be inhaled to purify the air in the car, therefore, the filter type car air purifier purification ability is also limited. The purification effect is effective.
2. Electrostatic dust collection type vehicle air purifier
Electrostatic dust collection type car air purifier is needed to cooperate with other equipment to achieve an efficient purification effect, because the electrostatic dust collection type car air purifier can't completely adsorb and eliminate the odour, and can't completely decompose the toxic chemical gas. At the same time, its purification effect and purification efficiency will increase with the accumulation of suspended particles and diminishing, the need to frequently clean the dust collection plate to restore its effectiveness and efficiency, so the maintenance cost is higher.
3. Ozone vehicle air purifier
Ozone car air purifier is the working principle to produce ozone to purify the air inside the car, to achieve the effect of improving the air quality inside the car. However, ozone has a certain effect on bacteria, especially for amines, nicotine, bacteria and so on. However, when using this type of car air purifier, we should pay proper attention to the concentration of ozone in the cabin, because ozone, if the concentration is too high, will produce secondary pollution, which is harmful to human health.
4. Plasmacluster Car Air Purifier
Plasmacluster car air purifier is a patented technology car air purifier produced by Sharp. The use of a Plasmacluster generator spraying a unique, efficient, safe Plasmacluster, to remove formaldehyde, benzene, bacteria, odours allergens, etc.; sedan-specific car technology, the use of the Kanda effect, so that the Plasmacluster reaches every corner of the cabin, purification does not miss the corner; use of up to about 17,500 hours before the need to change the ion generator.
Car air purifier function principle introduction
1. Super normal temperature formaldehyde catalytic oxidation technology (UFCO)
Soluble inorganic salts such as nitrates or carbonates of metals are used to obtain metal oxides through oxidative precipitation. A small amount of precious metal is loaded on the metal oxide to obtain high formaldehyde oxidation activity at room temperature. The catalyst consists of a metal oxide as the main body and a precious metal component loaded on the metal oxide. It is characterised in that the foregoing metal oxide component may be at least one of the following groups of metal oxides, and the foregoing noble metal component may be at least one of the following groups of noble metals.
Metal oxides: aluminium trioxide, nickel oxide, manganese dioxide, silicon dioxide, iron trioxide Noble metal group: platinum, ruthenium, gold, rhodium, palladium. The catalyst of the present invention, comprising a common metal oxide and a small amount of a noble metal, can be effectively used for the catalytic oxidation of formaldehyde under room temperature conditions. The catalyst of the present invention has a high catalytic activity and a long duration. The catalyst of the present invention can have a conversion rate of formaldehyde as high as 100% within the effective working time range.
2. Filter-type adsorption function using a fan to force air exchange
The use of porous filter materials, such as activated carbon, filter paper, fibre, foam, etc. (currently the strongest adsorption capacity of the filter material for HEPA), that is, the medical community on the air quality required by the standard high-density air filter material, the suspended particles in the air, harmful gases adsorption, so that the car purifier can be effective in filtering the suspended and a small number of hazardous substances, the odour and smell, pathogens, viruses, micro-organisms and decorative The air pollution caused by decorative materials has a certain effect. Its structure is relatively simple.
3. Electrostatic dust collection type Air purification by fibrous activated carbon filter and electrostatic dust filter
The principle of electrostatic filter is implanted in the non-woven fibres of positive and negative permanent charge so that the cloth surface is filled with a high number of volts of powerful electrostatic, used to adsorb suspended particles in the air, so that harmful molecules in the human body through the filter when the molecules are adsorbed in the filter, the filter cleaning efficiency can be from 7% to the heart of the filter collects 95% of the dust. Firstly, the permanent mesh pre-filter nets dirty air and large particles such as hair and fibre debris brought in by the fan. Secondly, the high-voltage ionisers within the air cleaner's air purification filters electrify airborne contaminants as small as 0.01 micron particles such as bacteria and viruses, which are attracted to the collection discs, thus preventing harmful irritants from circulating in the room. Then, an activated carbon filter absorbs odours. Finally, the purified air is returned to the cabin. The air purification filter can be easily renewed through regular washing.
4. Ozone's strong bactericidal decomposition function
Ozone (also known as triple oxygen), molecular formula O3, is a homogeneous isomer of oxygen. Ozone is the second strongest oxidant known to mankind after fluorine, ozone in a certain concentration with bacteria, viruses and other microorganisms to produce biochemical oxidation reactions. Ozone has a very high energy, so it is very unstable, the molecular structure is easy to change at room temperature and pressure and quickly decomposes into oxygen (O2) and a single oxygen atom (O). Single oxygen (O) has a strong activity, and bacteria, viruses and other microorganisms have a strong oxidation effect. Ozone disinfection is the way to disinfect the air conditioning circulatory system in the car, using a special disinfectant solution in the circulatory system can remove the odour in the car, there is a certain degree of disinfection and sterilization, especially for amines, nicotine, bacteria and so on. The ozone disinfection method is simpler to operate, a hose connected to a special car disinfector in the compartment, open the special car disinfector, disinfector to the high concentration of ozone generated by high-voltage discharge to every corner of the car, so only a few minutes can be. Although the disinfection time is very short, the elimination of germs is more thorough. The downside is that the disinfection of the car will retain a little ozone smell, but because the ozone can be quickly decomposed into colourless and odourless oxygen, as long as the windows are open for a while, the smell is not at all.
5. Negative Oxygen Ion Freshening Function
Air gas molecules or atoms in certain external conditions under the action of the formation of positive and negative ions. Positive ions can cause the human body to produce insomnia, headaches, increased blood pressure, and other adverse conditions; while negative ions are beneficial to human health. Negative oxygen ions can improve the respiratory tract and lung function, affecting the central nervous system and blood circulation system. When the human body inhales negative oxygen ions for 30 minutes, the lungs increase the absorption of oxygen by 20% and discharge carbon dioxide by about 14.5%. Reduce blood pressure, improve cardiac function, purify the blood, activate cells, improve sleep, and promote metabolism, so it is called "vitamins in the air". Car anion air purifier using high-voltage discharge, selective ionization of oxygen atoms in the air, resulting in negative oxygen ions. Negative oxygen ions have very lively chemical properties, they can quickly combine with other compounds in the air, so the formation of new forms of oxides, and then some gaseous substances into crystalline substances to purify the air. Working Principle: Simulate the principle of generating negative ions and ozone by a lightning phenomenon in nature, through the role of electronic circuits, the input low voltage will be raised to DC and AC high voltage by special components for discharge so that the air is ionized to produce negative ions and ozone, and then produce active oxygen to improve and regulate the air to make the air fresher and more natural.
Characteristics: The air cleaning effect, effectively removes cationic fumes, sulphuric acid gas, chlorine oxides, carbon monoxide, odour, and various organic substances retained in the air to maintain clean and fresh air in the car. Removes dust and sterilizes, regulates temperature, and produces water when converting harmful ozone into anionic oxygen, thus naturally regulating humidity. Can clean the blood, invigorate the spirit, improve sleep, enhance appetite, promote cell activation, prevent respiratory diseases, enhance the body's resistance to disease, and can enjoy a happy life, The anti-glare effect, within a limited space, the higher the concentration of negative oxygen ions, the fresher the air. Large-scale improvement of air quality still needs a long time, but in a small range of living environments we can use the air purifier can immediately reach the ideal state.
6. Photocatalyst decomposition principle
Photocatalyst is a kind of irradiation in the light, they do not change but can promote the chemical reaction of the material, like plants in the photosynthesis of chlorophyll. It is attached to the effective medium of nanoscale TiO2 particles through the irradiation of a specific light source, resulting in an "electron hole" pair (a kind of high-energy particle), this "electron hole" pair and the surrounding water, oxygen after the occurrence of the action of strong oxidation This "electron - hole" pairs and the surrounding water, oxygen have a very strong oxidation-reduction ability, can be air formaldehyde, benzene, and other pollutants directly decomposed into harmless and tasteless substances, as well as the destruction of bacterial cell walls, killing bacteria and decomposition of its silk screen organisms, to achieve the purpose of eliminating air pollution. Photocatalysts in the sunlight or indoor fluorescent lamps under the irradiation state produce bactericidal, antitoxic, deodorant, oil decomposition, prevent mould, prevent the production of moss algae, and play a powerful role in air purification. Generally speaking, photocatalysts must be irradiated by ultraviolet light to function. If sunlight is not available, an additional UV lamp must be added if you want to activate the photocatalyst. The wavelength of the UV lamp should be 254nm or 365nm for better effect.
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