Which HEPA Air Purifier?

HEPA air purifiers are very popular in the market. HEPA is the abbreviation for High Efficiency Particulate Arresting. These air purifiers remove particulates that are suspended and minute from the air, thereby purifying the air from all particles that are suspended in air, and may be a potential harm causing agent or an agent that may cause various allergies to people inhaling them.

HEPA air purifiers use materials that are made of polymers or fibers. The microscopic particles suspended in air are trapped by the material. Other than that, mold spores and various bacteria and viruses are trapped by HEPA air purifiers. There are various brands in the market that offer HEPA air purifiers in the market. These air purifiers are about 99.97% efficient. They can filter particles that are small up to 0.3 microns. The air purifiers purify air which flows through them and hence, this claim made by the companies may not be valid. There are indeed some HEPA air purifiers that are designed ineffectively and allow passage of air from the room within its filter and back into the room, without purging the impurities suspended in it.

HEPA air purifiers usually use an active material of which is carbon based to help in the absorbing of chemicals, gases and odors. There are many kinds like thin mats of Air-O-Swiss filters or several pounds seen in the Austin Air Purifier.

HEPA air purifiers are used specifically in vacuum cleaners. The usage of HEPA air purifiers in vacuum cleaners allows trapping of pollen and dust mites, which can reduce the asthmatic and allergic effects on those who are suffering from breathing problems.

Even though air purifiers are very effective, while buying purifiers, it is better to buy only HEPA filters and not 99% HEPA or other HEPA TYPE filters. This is only because HEPA air purifiers are the only ones effective and the results provided by the rest cannot even be compared with the ones produced by HEPA air purifiers. Nowadays sealed HEPA air purifiers are available too, which do not allow leakage of air without being filtered, thereby increasing the efficiency.

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