Do you need a portable air purifier?
Photo: ThinkstockAir purifiers are hot-ticket items for people who want to breathe easier. The lightweight machines can be placed on a shelf or floor. But do these portable appliances make a difference? "They really can eliminate or reduce several airborne allergens and pollutants such as dust mite allergens, mold, pollens, and pet dander," says Dr. Nicolas Busaba, an ear, nose, and throat doctor at Harvard-affiliated Massachusetts Eye and Ear Infirmary.
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