There are many types of air purifier brands on the market now, and with the help of air purifier manufacturers and media, the functions and technologies of air purifiers are being hyped up wildly. لذا, what are the functions of air purifiers? What technologies are used in air purifiers on the market? What are the characteristics of each technology? Most consumers and even some dealers are not very familiar with this information. By reading this article, you will have a general understanding of the main technologies used in air purifiers.
HEPA فilter + أctivated Carbon Technology
This is the main technology currently used in air purifiers on the market. The advantages are obvious, using physical filtration, there are no side effects on the human body, and the price is relatively cheap, and the cost of replacing the filter is also low. HEPA filters are mainly used to filter large particulate pollutants in the air, and then remove formaldehyde, ozone, toxic chemicals, إلخ. with activated carbon. If consumers want to buy a cost-effective air purifier, then HEPA filter+activated carbon technology air purifier is the first choice
Of course, the drawbacks of this type of air purifier are also very obvious. The filtering accuracy is not high enough, and the removal of extremely small particles such as PM2.5 and haze is not clean enough. Moreover, this type of technology has relatively high noise and belongs to passive air purifiers. The filtering effect is not as thorough as other air purifiers because after the filter is fully adsorbed, if not replaced in time, it will release pollutants into the air, causing secondary pollution
Negative أناon أir صurification Technology
The concept of negative ions has been hotly debated in the past two years. It is said that after every heavy rain, thunder and lightning strike, and the air contains billions of negative ions. Coming to the seaside or trees, the fresh and refreshing air is due to the presence of negative ions in the air. لكن, the negative ions in the air mainly come from the negative ion generator in the purifier, which releases negative ions to adsorb and purify dust, formaldehyde, haze, and other pollutants in the air.
Although negative ion air purifiers have a comprehensive effect on indoor air purification, negative ion air purification technology cannot achieve effective purification in the face of pollutants such as ammonia, ozone, and carbon monoxide. Moreover, negative ion air purification technology releases ozone during use, which can cause intangible harm to the human body to a certain extent. If elderly or children in the home often feel dizzy and headache, it is necessary to test whether the ozone release of the air purifier exceeds the standard.
Ozone أir صurification Technology
Ozone in the air is mainly distributed in the stratospheric atmosphere at altitudes of 10-50km, with maximum values between 20-30km. At room temperature and pressure, the stability is poor and it can decompose into oxygen on its own. Ozone has the taste of green grass, and inhaling a small amount is beneficial to the human body. Inhaling too much can be harmful to human health. Non flammable, pure substance. Oxygen can be converted into ozone through electric shock.
The sterilization effect of ozone air purifiers is much better than that of HEPA and negative ion air purifiers. لكن, during use, a certain amount of ozone is released. Currently, most air purifiers do not have the function of removing ozone and will directly discharge it into the air, causing harm to the human body. لذلك, there are few ozone air purifiers on the market
Photocatalyst أir صurification Technology
Photocatalyst air purification technology is currently the most advanced and effective air purifier technology in the purifier industry. Photocatalysts can oxidize and decompose harmful organic compounds, pollutants, odors, bacteria, إلخ. such as formaldehyde, benzene, toluene, xylene, ammonia, TVOC, إلخ. under the action of light into harmless CO2 and H2O. The product has efficient and broad-spectrum disinfection performance, effectively controlling the cross infection of bacteria and viruses to achieve the goal of controlling bacterial reproduction and purifying the air. The product itself does not undergo any changes or wear and tear, but only provides a reaction site. It has the advantages of long-lasting, continuous use, safety, and non toxicity, and does not produce secondary pollution. It is internationally recognized as a green, environmentally friendly, and pollution-free product.
- Safety: non-toxic, harmless, safe and reliable for human body; The final products of the reaction are carbon dioxide and water, which do not produce secondary pollution.
- Efficiency: Photocatalysts can decompose pollutants diffused in the air using light sources such as ultraviolet light, sunlight, and fluorescent lamps.
- Sterilization function: It has the ability to kill and inhibit bacteria such as Escherichia coli and Staphylococcus aureus.
- Deodorization function: It has the effect of removing cigarette odor, toilet odor, garbage odor, animal odor, إلخ.
- Self cleaning function: It can have a self-cleaning effect on the surface of indoor and outdoor objects.
- Purification function: It has the ability to degrade organic harmful substances in wastewater.
Of course, photocatalytic air purification also has its drawbacks:
It is necessary to maintain indoor lighting as much as possible to provide good working conditions for photocatalysts. At the same time, photocatalysts, like other passive air purification products, require harmful substances in the air to come into contact with their surfaces in order to react. لذلك, it is beneficial to enhance the fluidity of indoor air and maintain certain ventilation.
Summary:
When purchasing an air purifier, the main thing is to buy according to your own needs. Each technology of air purifier has its own reasons for existence, such as HEPA+activated carbon filter, which has a low price and high cost-effectiveness. If the requirements for air purification are not very strict, then choosing this type of air purifier is the best
Although photocatalytic air purifiers have good purification effects, they are also expensive and have strict requirements for air quality. If your home is in a high-end residential area and the air quality is also good, then choosing this type of air purifier is also a good choice
Of course, from the current market perspective, activated carbon air purification technology is currently the most highly rated air purification system, with safety and good adsorption effect. But pay attention to replacing the filter screen frequently according to the machine prompts to prevent secondary pollution.
