Air Purifier

Want to breathe fresh and pure air? Air purifier is the best solution for this.
A clean and purified air is very much essential for maintaining good health. Breathing fresh, pure air is very pleasing and definitely improves the climate of your house or office. This can be achieved with the use of air purifier.

An air purifier is a device that makes the air free of viruses and microorganisms. Air purifier also removes off pollutants, allergens and dust from the air. They are useful in removing allergy triggering allergens like dust mites, mold spores, animal dander and pollens.

The filters present in the air purifiers capture the pollutants from the air, purifies them and re-emits fresh air, free of pollutants. These air purifiers remove or reduce the concentration of the allergens and therefore are very beneficial and useful for the people suffering from allergies, MCS and asthma.

With so many different types of air purifiers popping out the market, it’s difficult to choose a better one. Every Individual is different and so are his needs. And therefore, all the air purifiers are designed taking into consideration the needs of people. Some of the best types of air purifiers are given below.

HEPA (High Efficiency Particle Arresting) Air Purifiers

HEPA air purifiers are the most efficient type of air purifiers. The filters used in these purifiers are made up millions of small glass fibers from which the air has to pass. These fibers collect not only smaller particles but also larger particles from the air. They have the efficiency of removing about 99.97 % of the particles including viruses, bacteria and microorganisms.

HEPA filters were firstly developed by the Atomic Energy Commission at the time of Second World War but now used in commercial clean rooms. HEPA air purifiers must be arranged in such a way that no air bypasses the filter. The only disadvantage of this air purifier is that it has to be changed periodically.

Electrostatic Air Purifiers

Electrostatic Air Purifiers are used in houses to remove particles from the air. The filters present in electrostatic air purifiers contain electrostatic charge that attracts smallest dust particles from the air. These air purifiers work by applying electronic field across the filter, which attracts the charged particles.

Not only dust, electrostatic air purifiers are also capable of removing animal dander, pollens, flooring adhesive fumes, mold spores and paint fumes from the air. The advantage of this air purifier is that you need not have to change the filter but only clean it.

Ion Generator Air Purifiers

Ion generator air purifiers act in the same way as electrostatic air purifiers do. These purifiers have electrically charged surfaces that generate negatively charged ions. These generated ions are stuck to the particles present in air, which in turn are attracted to the electrically charged surfaces.

One of the disadvantages of this air purifier is that it works only in localized areas.

Carbon Air Purifiers

Carbon air purifiers are highly active chemically. The highly porous material present in the filters of carbon air purifiers reacts with small particles in the air by absorbing them. Along with the particles, these purifiers also remove some of the odors from the air.

The disadvantage of this type of air purifier is that they are not long lasting. The filters have to be changed frequently. Also, these air purifiers are incapable of removing larger particles.

Ozone Generator Air Purifiers

Ozone generator air purifiers work by producing a strong oxidant gas called ozone, which oxidizes many chemicals coming in its way. Therefore any of the particles coming in contact with ozone get oxidized.

As these purifiers change the particles chemically, they are used in many commercial applications. Breathing ozone is not at all good for health and therefore caution must be taken while buying such type of air purifiers.

By Gayatri Haldankar
Published: 3/14/2008

 
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