Air purifiers

Air purifiers

purifiers did not manage to gain mass popularity as, for example, filters for water purification or conditioners yet. In this article I will try to explain an essence of air purifiers and the principle of their work.

For what air purifiers are necessary? People often think of an ecological situation in the city and the country, but for some reason forget about a situation with air pollution in own dwelling. And in vain, we spend at home a lot of time, and it is worth thinking not only of quality of that air which we breathe on the street, but also about air quality in the house. Especially it is relevant for the people having an allergy and people with small children about whose state of health it is important to watch round the clock. You should not think that air in the house cardinally differs from air of the modern megalopolis which corresponds to optimal conditions for human life a little for a long time and vryad lisposobstvut to health and comfort.

It is impossible to be protected from the polluted air by modern double-glazed windows, especially in buildings near highways and housing estates where concentration of hazardous substances in air exceeds all admissible norms. In addition to it, in the room there are very many sources of air pollution. Practically in any apartment there will be furniture from such materials as chipboard, a fibreboard, plywood, etc. Is a part of these building materials phenol formaldehyde having ground high concentrations. This component in itself is not dangerous to the person. However e that pitch begins to decay after a while on phenol and formaldehyde which are poisonous for a human body. Also strong source of air pollution is the person, pets, houseplants, a mold, a fungus, etc. During a day of people inhales approximately up to seventeen kilograms of air. Even if impurity in air do not exceed maximum permissible norms, it means that per day each of us uses from 15 to 100 mg of hazardous substances.


Separately It should be noted advantage of air purifiers for the people having an allergy. It is considered that emergence of allergic reactions happens because of air pollution. In the cities megalopolises there are much more people with allergic frustration. And in the spring and in the summer, during blossoming and pollination of plants, pollen and down of plants transfer allergens and complicate our life. It is necessary to distinguish from other allergens domestic pincers, hair of pets and, of course, traditional house dust where all above-mentioned components can enter. The contact with these allergens is very dangerous to children as at early children's age the risk of development of bronchial asthma at massive anti-gene allergic loading is increased. The vacuum cleaner and damp cleaning of the room give only temporary relief. Besides, these methods are powerless against microorganisms as they are not besieged in motionless air, and harm from them is enormous — the less particle and allergens, the more deeply they get into lungs of the person. Modern medicines demand constant reception and do not give a guarantee that the allergy will not return again. Treatment has to begin not with fight against symptoms, and first of all - with allergen elimination.

In the optimum way of creation of a clean and healthy microclimate of the house, at work and in other rooms the air purifier is. Numerous tests in many medical and scientific institutions proved efficiency of air purifiers in extraction from different air of allergens and suppression of activity of microbes and bacteria. The air purified from allergens and other harmful microorganisms is exclusively useful to health. It improves health, promotes concentration of attention, increases working capacity and well influences cardiovascular, nervous and pulmonary systems.


So, having convinced to what danger your organism is exposed, you will probably think of installation of the air purifier in the apartment. But existence in the market of various models of air purifiers can throw you into confusion. Let's consider the most popular models of air purifiers and the principles of their work:

  1. Photocatalytic filter. In the course of a photocatalysis, harmful impurity do not collect in the filter, and under the influence of ultra-violet radiation in the presence of the photocatalyst decay to absolutely harmless components of the natural air environment.
  2. Coarse filter. Almost at each air purifier there is a coarse filter. It serves for detention of large particles of dust and hair of animals. Such filters periodically clean from pollution in the mechanical way. After this filter, air arrives on thinner processing.
  3. Carbonic filter. Carbonic (or coal) the filter serves for removal unpleasant zapakhov demands replacement approximately once in half a year.
  4. The electrostatic (ionizing) filter. Electrostatic filters of air purifiers well purify air from dust and a soot, but do not exempt from such toxic pollutants as nitrogen oxides, formaldehyde, and other volatile organic compounds which are present at air of household and production rooms; therefore its operation is desirable in a combination with other filters. [br/] Plus of the electrostatic filter is the small cost and lack of additional operating costs. [br/] the Principle of operation of electrostatic filters, is based on an attraction of electric charges of different polarity. The polluted air passes through the ionization chamber in which particles of pollution get a positive charge then they settle on negatively charged plates. For cleaning of such filter (plates) it is enough to wash of it with soap water.
  5. Antibacterial filter. It is applied to prevention of spread of various viruses and bacteria. Usually represents fabric with antibacterial impregnation.
  6. The HEPA filter (High Efficiency Particulate Arresting is a highly effective delay of particles). According to the accepted international classification there are 5 classes HEPA of filters: H10, H11, H12, H13 and H14. The class is higher, the quality of filtration of air is better – so, HEPA H13 filters are capable to detain particles up to 0.3 microns in size with efficiency to 99.975%. HEPA filters in many air purifiers are the basic filtering element. Such filter in fact is the dust filter (i.e. the filter collecting dust), but material of which it is made and its design allow it to detain very small particles of dust – up to 0.3 microns in size and more, the efficiency of such filter is 99%. Such filters are recommended to be used the allergic patient at the proved role of a respiratory allergy during a disease. Such filter demands replacement approximately once a year.

Very often the air ionizer is a part of the air purifier. During its work air is sated with negatively charged ions that promotes full digestion of oxygen by the person. The lack of ionization leads to constant oxygen starvation, feeling sick, decrease in working capacity, loss of attention, increased fatigue, easing of the general immunity and provokes development of the most various diseases. Therefore surely pay attention to existence of the ionizer before buying the air purifier.

Also air purifiers are put on industrial or business enterprises. The efficiency of such devices is much higher, than at household, but they publish too much noise, consume too much energy and take a lot of place. It does not mean that for the house you have to use the household air purifier, it is possible to put and semi-industrial bigger power - such air purifier will clean your room quicker. The main thing that at you was enough the place for installation of such air purifier, there would be funds for its acquisition, and its noise level would conform to your requirements.

Author: «MirrorInfo» Dream Team