The function and efficacy of air purifier is cleaning. In home life, we must pay attention to air hygiene. With the frequent outbreak of haze in the north, people began to pay attention to respiratory health and air quality. Let's share various air purification methods.
Function and efficacy of air purifier Purification 1 Taste function;
Families who use air purifiers, especially those who choose negative ion air purifiers, generally report that indoor smoke disappears without a trace after opening the air purifier. Decoration smells, such as some smells of boards, can also be purified.
Dust removal function:
When air purifiers entered the China market, they were designed to purify dust, dust, pollen and other particles in the air. It can be said rudely that dust removal is the basic configuration of air purifier, which is beyond doubt.
Sterilization function:
Sterilization is an important function of negative ion purifier. For example, an air purifier with NDS negative ion function can effectively remove indoor bacteria, especially cooperate with UV lamp for double sterilization, and effectively inactivate microbial pollution such as bacteria and viruses in indoor air.
Formaldehyde treatment:
The air purifier absorbs formaldehyde through the filter screen of activated carbon. With the development of science and technology, the treatment measures for formaldehyde are becoming more and more powerful, such as ASNC nano-mineral crystal adsorption system with adsorption capacity 9 times that of activated carbon, coupled with formaldehyde decomposition system, forming a new purification mode of adsorption+decomposition.
Function and efficacy of air purifier net 2 Introduction of air purifier
Air purifier is also called air purifier. Air freshener refers to products that can absorb, decompose or transform various air pollutants (generally including dust, pollen, odor, decoration pollution such as formaldehyde, bacteria, allergens, etc.). ).) and effectively improve the air cleanliness. At present, domestic and commercial air purifiers are mainly used to remove indoor air pollution.
Matters needing attention in purchasing air purifier.
Whether there is a scientific purification principle to achieve an efficient air purifier effect.
There are five principles of air purification in the world: physics, static electricity, chemistry, negative ions and compound. Generally speaking, physical purification is the most common and effective method. For example, dust, pollen, allergic substances, viruses and other large particles can be filtered by HEPA technology in physical purification; Benzene, toluene, formaldehyde and other harmful substances and other odors can be purified by activated carbon adsorption in physical purification.
There are three kinds of purification methods: active purification (air purification), passive purification (fixed-point purification) and active-passive compound purification. Passive purification method can only purify inhaled air; Active purification will purify the whole space. Active and passive compound purification is a combination of the two, and the effect is better.
Active purification is a controversial technology in the world. Because the concentration of pollutants in the air is generally11million or even lower, active purification requires spraying higher concentrations of chemicals into the air, which even increases the degree of air pollution in general. For example, European and American countries strictly prohibit the release of ozone into the air.
Whether there is absolute safety.
Buying an air purifier is to get healthy and fresh air. Whether the air purifier is safe or not is the basic premise to decide whether it is desirable or not. The shell, movement and purification technology of air purifier will directly affect the air.
Safety of purifier. The purification technology should be the same as the positive and negative ions in nature, and its safety has been certified by 13 foreign institutions.
Whether it meets the specific purification requirements.
As far as air purifiers are concerned, the purification function is the most concerned function. If your requirement for indoor air purifier is only based on improving indoor air quality, then you can choose pure air purifier with high cost performance.
As people's requirements for quality of life are getting higher and higher, the demand for air purifiers is no longer simply to purify indoor air. For example, people who work in a closed air-conditioned room, because of the dehumidification function of the air conditioner, the indoor air becomes very dry and the skin becomes dry, so when choosing an air purifier, they will choose a humidified air purifier with skin beautifying function.
For a long time, people with large population and indoor pollution need to breathe fresh and sterile air at close range. When buying an air purifier, they will prefer a small K-type air purifier that fits on the desktop.
People who own their own cars should choose car air purifier to purify all kinds of car odors and even alleviate driving fatigue.
Function of air purifier
1, especially suitable for patients with respiratory diseases;
Living in polluted air for a long time will lead to decreased respiratory function and aggravated respiratory symptoms, especially rhinitis, chronic bronchitis, bronchial asthma, emphysema and other diseases. In addition, the prevalence of lung cancer and nasopharyngeal carcinoma will also increase.
2, especially suitable for home decoration family:
The harmful substances produced by indoor decoration are mainly formaldehyde, benzene and benzene series. Formaldehyde has been identified as a carcinogen and teratogenic substance by the World Health Organization. Long-term exposure can cause various respiratory diseases, menstrual disorders, leukemia, and the decline of memory and intelligence of teenagers.
3, especially suitable for children:
Children's body is developing, and their immune system is fragile, which is easily affected by indoor air pollution, resulting in decreased immunity, physical retardation, increased incidence of blood diseases and asthma, and greatly reduced children's intelligence.
4, especially suitable for office workers:
Working in a high-end office building is an enviable job. However, in a constant temperature, airtight and poor air quality environment, it is easy to cause dizziness, chest tightness, fatigue, emotional ups and downs and other uncomfortable symptoms, affecting work efficiency, causing various diseases, and even causing cancer in serious cases.
5, especially suitable for the elderly:
Old people suffer from various chronic diseases because of the decline of physical function. Air pollution will not only lead to respiratory diseases such as tracheitis, pharyngolaryngitis and pneumonia in the elderly. It can also induce cardiovascular diseases such as hypertension, heart disease and cerebral hemorrhage.
6, especially suitable for pregnant women:
Pregnant women will feel unwell in a room with serious air pollution, such as dizziness, sweating, dry tongue, chest tightness and vomiting. , will adversely affect the development of the fetus. Children born to pregnant women who breathe fresh air are three times more likely to have heart disease.
7, especially suitable for drivers: lack of oxygen in the car, serious automobile exhaust pollution.
8, especially suitable for hospitals: reduce infection and prevent the spread of diseases.
The role and efficacy of air purifier net 3 How to choose an air purifier?
The filter purifier is safe and effective.
Physical filter air purifier is the most common product on the market at present, and its magic weapon lies in safety and high efficiency. This is determined by its working principle. The filter air purifier adopts physical purification filter element. Because physical purification is only carried out by filtration, the purified air will hardly have "side effects" on the human body, so it is a safer method. It is effective because the filter air purifier will adopt different "coping styles" for different types of pollution. For example, the front filter screen can filter out larger dust and particles; Filters such as activated carbon can filter out harmful gases and unpleasant smells such as VOC and formaldehyde; HEPA filter can filter out viruses, bacteria, fungal spores and so on. So as to achieve the effect of "healthy air".
The noise problem determines the comfort of use.
A high CADR value means high noise, so the mute mode of the purifier is very important, especially in the sleep mode at night. Generally do not exceed the limit of 30 decibels, so that the purifier can provide clean air without affecting rest. 12 brand evaluation data of air purifier shows that CADR value, particle purification and formaldehyde purification efficiency are very important.
The CADR value of air purifier is very important.
CADR is a recognized performance index of air purifiers in the United States and China. They can be used to express and compare the performance of air purifiers in the same test environment. CADR is the output rate of clean air, which can express the performance of air purifier, but the value is not equal to how much clean air can be produced. The calculation of CADR also needs to add the natural decay rate of particles. For CADR, we don't need to study it in depth, only know that the greater the CADR value, the better the performance.
The applicable area of the air purifier should be appropriate.
The applicable area is often marked in the instructions of air purifiers, which is as important as the purification performance. Generally speaking, the products within CADR300 should be used in the environment below 40 square meters as far as possible, and the products with high cost performance should be selected according to the applicable area.
The purification efficiency of air purifier determines the cost performance.
In addition to the applicable area, another index derived from CADR value-purification efficiency is an important parameter to assess the energy efficiency level of air purifiers. The conversion relationship between them is: CADR value (purification capacity per unit time) ÷ power consumption = purification efficiency (purification capacity per unit energy consumption). For example, if the rated power of an air purifier is 50w and the CADR value of particulate matter is 400m3/h, then its purification efficiency is 400m3/h ÷ 50w = 8m3/(h w). That is, the power consumption of this machine is 1w, and the clean air output is 8m3.
Therefore, to sum up, consumers should not only pay attention to CADR value when purchasing air purifiers, but also the purification efficiency is an important indicator. Generally speaking, the greater the purification efficiency, the higher the energy efficiency. This product is energy-saving and has good purification effect, so it is your first choice.