Living in polluted air for a long time will cause the decline of respiratory function and aggravation of 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.
What is an air purifier?
Air purifiers, also known as' air cleaners' and air fresheners, refer to products that can absorb, decompose or transform various air pollutants (generally including decoration pollution such as dust, pollen, peculiar smell and formaldehyde, bacteria and allergens) and effectively improve air cleanliness. At present, domestic and commercial air purifiers are mainly used to remove indoor air pollution.
Considerations for purchasing air purifiers.
Whether there is a scientific purification principle to achieve the effect of high-efficiency air purifier.
There are five internationally accepted air purification principles: physical, electrostatic, chemical, negative ion and compound. Generally speaking, physical purification is the most commonly used and effective method. For example, dust, pollen, allergic substances, viruses and other large particles can be filtered by HEPA technology in physical purification; Harmful substances such as benzene, toluene, formaldehyde and other peculiar smell can be purified by activated carbon adsorption in physical purification.
According to the purification mode, it is divided from the active direction, and the purification mode is divided from the active direction. There are active purification mode (air purification) and passive purification mode (fixed-point purification) and active and passive composite purification. Passive purification only has purification effect on inhaled air; Active purification method will have purification effect on the whole space. Active passive composite 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 generally 1 / 100000 or even lower, and active purification requires spraying higher concentrations of chemicals into the air, on the whole, it even increases the degree of air pollution. For example, the release of ozone into the air is strictly prohibited in European and American countries.
Whether it has absolute security.
Buying air purifiers is nothing more than to exchange them for healthy and fresh air. Whether an air purifier is safe or not is the basic prerequisite to determine whether it is desirable. The shell, movement and purification technology of air purifier will directly affect the air quality
Safety of purifier. The purification technology should be the same as the positive and negative ions in nature, and 13 foreign institutions have certified its safety.
Whether specific purification requirements are met.
As far as the air purifier is concerned, the purification function is the most concerned function. If your requirements for indoor air purifier are only based on improving indoor air quality, you can choose the type of pure air purification and high cost performance.
With the increasing demand for quality of life, the demand for air purifier is no longer simply to purify indoor air. For example, those who work in a closed air-conditioned room will choose a humidified air purifier with skin beautifying function when choosing an air purifier because the dehumidification effect of the air conditioner makes the air in the room very dry and the skin dry.
However, people who have been living in a large number of people for a long time and with large indoor pollution need to breathe fresh and bacteria free air at a close distance. When purchasing air purifiers, they will prefer small air purifiers suitable for putting on the table.
People with their own cars should choose car air purifiers 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 cause the decline of respiratory function and aggravation of 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 family decoration:
Formaldehyde, benzene and benzene are the main substances harmful to health produced by interior decoration. Formaldehyde has been identified as carcinogenic and teratogenic substances by the World Health Organization. Long term exposure can cause various respiratory diseases, menstrual disorders, leukemia, memory and intelligence decline of teenagers, etc.
3. Especially for children:
Children are developing physically, their immune system is relatively fragile, and are easily endanger by indoor air pollution, resulting in decreased immunity, slow growth of the body, induced hematologic diseases, increased incidence rate of asthma in children, and greatly reduced children's intelligence.
4. Especially suitable for office family:
Working in a high-end office building is an enviable occupation. However, in a constant temperature and closed environment with poor air quality, it is easy to cause discomfort symptoms such as dizziness, chest tightness, fatigue and great emotional fluctuation, which affect work efficiency, cause various diseases, and even cause cancer in serious cases.
5. Especially suitable for the elderly:
The physical function of the elderly decreases and is often plagued by a variety of chronic diseases. Air pollution not only causes respiratory diseases such as tracheitis, pharyngitis and pneumonia in the elderly. It can also induce hypertension, heart disease, cerebral hemorrhage and other cardiovascular diseases.
6. Especially for pregnant women:
Pregnant women will feel general discomfort in the room with serious air pollution, dizziness, sweating, dry smoke, dry tongue, chest tightness and vomiting, which will have a negative impact on the development of the fetus. The risk of heart disease is three times higher than that of children born to pregnant women breathing fresh air.
7. Especially suitable for drivers: lack of oxygen in the car and serious automobile exhaust pollution.
8. Especially suitable for hospitals: reduce infection and prevent the spread of diseases.