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HEPA Air Purifiers are Taking Care of Your Health


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Urban air contains an excess of dust, toxic car exhausts, down, gas emissions from building materials and other «products» of civilization. But the danger comes not only from the outside. Cigarette smoke, household chemicals, countless multitudes of dust mites, books and furniture emit particles of glue, synthetic materials, etc. And all this is in your home! Even the best vacuum cleaner can not maintain the purity of the air all the time, but dust is continuously getting into our homes. In a room, which is completely isolated from the outside world, dust is formed in the process of human activity.

In addition, when cleaning the apartment with a vacuum cleaner it's is almost impossible to remove all the dust, which rises into the air, and after turning the vacuum cleaner off, it settles on carpets, shelves, windowsills and other things. HEPA air purifiers easily perform the functions of air cleaning.

HEPA air purifiers are the most effective air cleaners (up 99.97%) for removal of dust, pollen and other microparticles up to 0.3 microns in size. HEPA air cleaners are recommended for highly allergic individuals and for use in children's rooms, thanks to the highest degree of protection from harmful dust and a minimum ozone output.

The more square feet are taken up by filtering material in your HEPA air purifier, the more particles it can retain before the overflow. Also, the larger the filter is, the more particles are retained in each pass through the filter. The important determinants of the HEPA filter quality are also the type of material used and the design.

The disadvantages of these filters are high price and inability to regenerate.

The name HEPA filter (High Efficiency Particulate Air) can be interpreted as «high efficiency filter for cleaning the air from particles. » These filters are made of special material consisting of thin fibers. Fibers form a net of tiny pores, effectively delaying the particles of size from 0.3 microns. These filters were worked out for ventilation systems of ultrapure (medical) facilities, because the ordinary dust filters could not provide the required air quality. Later people started to use HEPA filters in HEPA air purifiers, vacuum cleaners and other household appliances.

HEPA filters are also used in mechanical HEPA air purifiers. According to international classification, there are 5 classes of HEPA-filters: H10, H11, H12, H13 and H14. The higher the class, the better the quality of air filtration, and thus filters HEPA Н13 are able to retain particles of 0.3 microns in size. Such filters are made of fibrous material that looks like a cardboard or a thick cloth, they cope well with pollen, cement and asbestos dust, bacteria, but worse - with the smaller size of viruses, and tobacco smoke. HEPA filters should be replaced every 3-4 months, because their operational efficiency reduces with their pollution. In addition, their fibrous surface is a very convenient “springboard" for microorganisms, so manufacturers additionally impregnate it with a special chemical composition, depressing the vital activity of bacteria (so you must ask, if there is such an impregnation in your filter). Among HEPA air cleaners, equipped with HEPA filters, some models are designed for the areas of 50-150 m 3 and their cost is $ 130-150. One should not mix up the filters of HEPA air cleaners with mechanical primary filters, which are usually like net with fine mesh. Such filters are used in the majority of air cleaners for retaining large specks and animal dander.

The manufacturers of HEPA air purifiers filters are Honeywell, Duracraft.

Filters UPLA (Ultra Low Penetrating Air), capable of retaining up to 99.999% of particles with a diameter of more than 0.1 microns are even more perfect than the HEPA air purifiers. Such filters don't differ much from the models of HEPA in the operating principle, but they are more expensive and are used in more expensive models of air cleaners (e. g. priced at $ 300 and manufactured by Canadian company BIONAIRE).

In order to choose the right device for air cleaning, you must have a clear picture of what unseen dangers lurk in our home “atmosphere". In addition to usual “fluffy" dust the air can contain something even worse. For example, various “Biology" - such as bacteria, viruses, tiny exfoliated particles of epithelium, pollen. Besides, the notorious gas radon, tobacco smoke, combustion products generated from kitchen stoves use, and other odors. This “cocktail" not only reduces the comfort of living in apartment, but also may cause allergic reactions, respiratory diseases, fatigability, headaches and other indispositions.

Plan ahead before buying an air purifier for your house. This way, you will have all information needed for the correct choice. Check this site out for additional tips and useful articles about home hvac systems . It has very useful topics regarding air purifiers , air conditioners and more.


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