There are many kinds of car air purifiers on the market. The following are 5 common purification types for air purifiers.

1. Filter Adsorption Type

With forced ventilation by the fans, and using porous filter material, such as activated carbon, filter paper, fiber, foam, etc. And HEPA is the filter material with the strongest adsorption capacity, that is, the high-density air filter material required by the medical field for air quality. It can adsorb suspended particles and harmful gases in the air, so that the car air purifier can effectively filter the suspended solids and small amounts of harmful substances, It has a certain effect on air pollution caused by odors, pathogenic bacteria, viruses, microorganisms and decorative materials. Its structure is simple.

Filter Adsorption

2. Electrostatic Dust Collection Type

Using fibrous activated carbon filter and electrostatic dust filter to purify the air. The principle of the electrostatic filter is to implant positive and negative permanent electric charges in the non-woven fabric fiber, so that the cloth surface is filled with high-voltage strong static electricity, which is used to absorb suspended particles and make the harmful molecules pass through the filter. The cleaning efficiency of the filter can be up to 95%. First, the permanent mesh pre-filter nets the dirty air and large particles such as hair and lint brought in by the fan. Secondly, the high-voltage ionizer in the air purification filter makes some 0.01 micron polluted particles like bacteria and viruses charged, and they are adsorbed in the collecting tray, which can prevent harmful irritants from being indoor circulation. Then, the activated carbon filter absorbs the odor. Finally, the purified air returned to the car. Through regular washing, the air purification filter can be easily cleaned.

Electrostatic dust collection type car air purifier

3. Ozone Sterilization And Decomposition Type

Ozone, molecular formula O3, is an allotrope of oxygen. Ozone is the second strong oxidant in nature. Ozone can produce biochemical oxidation reactions with bacteria, viruses and other microorganisms at a certain concentration. Ozone has very high energy, so it is very unstable. Its molecular structure is easy to change at normal temperature and pressure, and it quickly decomposes into oxygen and a single oxygen atom. Single oxygen (O) has a strong activity and has a strong oxidizing effect on bacteria, viruses and other microorganisms.

Ozone disinfection is a method of disinfection with the air-conditioning circulation system in the car. A special disinfectant is used to enter the circulation system to remove the peculiar smell in the car. It has a certain disinfection and sterilization effect, especially for amines, nicotine, and bacteria. The ozone disinfection method is relatively simple to operate. Although the disinfection time is very short, it can eliminate the germs completely. The shortcoming is that there will be a little ozone smell in the car after disinfection, but since ozone can quickly decompose into oxygen, as long as the car windows are opened for a while, the smell will disappear at all.

 Ozone sterilization and decomposition type air purifier

4. Negative Oxygen Ions Freshness Type

Gas molecules or atoms in the air form positive and negative ions under some external conditions. Positive ions can cause insomnia, headaches, the elevation of blood pressure, and other unhealthy diseases, while negative ions are beneficial to human health. Negative oxygen ions can improve the respiratory tract and lung function, and affect 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 emit about 14.5% of carbon dioxide. Lower blood pressure, improve cardiac function, purify the blood, activate cells, improve sleep, and promote metabolism, so it is called “vitamins in the air”.

The ionizer air purifier for vehicles uses high-voltage discharge to selectively ionize oxygen atoms in the air to produce negative oxygen ions. Negative oxygen ions have very active chemical properties. They can quickly combine with other compounds in the air to form new oxides, which in turn can transform certain gaseous substances into crystalline substances to purify the air.

Working principle: Simulate the principle of negative ions and ozone generated by lightning phenomena in nature. Through the action of the electronic circuit, the input low voltage is increased to high voltage, and the discharge is carried out by special components to ionize the air to produce negative ions and ozone, then produce active oxygen to improve the air quality, making the air fresher.

Features: Clean the air, effectively remove the cation smoke, sulfuric acid gas, oxychloride, carbon monoxide, odor and the precipitation of various organic substances in the air, so as to maintain clean and fresh air in the car. Dust removal and sterilization effect, water is produced in the process of converting ozone into anion oxygen, so the humidity can naturally be adjusted. It can clean the blood, invigorate the spirit, improve sleep, increase appetite, promote cell activation, prevent respiratory diseases, enhance the body’s disease resistance and enjoy a happy life, anti-dazzle effect. In a limited space,  the higher the negative ion concentration, the fresher the air. It will take a long time to improve the air quality in a large space, but in a small room, we can use a car air purifier to reach the ideal effect immediately.

Negative oxygen ions freshness type air purifier

5. Photocatalytic Decomposition Type

Photocatalyst is a substance that does not change itself under the irradiation of light, but can promote chemical reactions, just like the chlorophyll in the photosynthesis of plants. It is to irradiate the nano-sized TiO2 particles attached to the effective medium through a specific light source and produce an “electron-hole” pair, a kind of high-energy particle. This “electron-hole” pair and the surrounding water, Oxygen has a strong oxidation-reduction ability, which can directly decompose formaldehyde, benzene and other pollutants in the air into harmless and odorless substances, destroy the cell wall of bacteria, kill bacteria and decompose their silk mesh bacteria, to achieve the purpose of eliminating air pollution. The photocatalyst has functions of sterilization, anti-poisoning, deodorization, oil decomposition, mildew prevention and moss algae production under the sunlight or indoor fluorescent lamp, playing a powerful air purification effect.

Generally speaking, the photocatalyst can function only under the irradiation of ultraviolet rays. If you can’t get sunlight and want to activate the photocatalyst, you must add an extra ultraviolet lamp. The wavelength of the UV lamp should be 254nm or 365nm for better results.

Photocatalytic decomposition type air purifier

If you would like to learn more about air purification and our car air purifiers, please feel free to leave a message online, chat with our team on WhatsApp +86 170 5109 5790 or send us an email at sales@kelylands.com. We always welcome your inquiries.