An air purifier is a mechanical device the purpose of which is to free air from pollutants. The popularity of air purifiers is caused by the results from environmental researches which claim that the air inside homes is dirtier than the air outside of homes. Air purifiers are particularly beneficial for allergy sufferers and asthmatics or those who wish to reduce second-hand smoke.

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In today's world, it seems that almost any topic is open for debate. While I was gathering facts for this article, I was quite surprised to find some of the issues I thought were settled are actually still being openly discussed. In today's time, indoor pollution has reached unmitigated levels. Experts say that indoor pollution in fact is two to five times as much as outdoor air pollution. This assumes significant importance for the kind of lifestyles we lead. Did you know that we spend more than 90% of our time indoors? Indoor contaminants include dirt and dust mites, pet hair, mold mildew, household odors,
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