Companies that sell air purifiers advertise them as devices that can remove pollutants or contaminants from the air inside homes. These include internal pollutants, such as those emitted from cleaning products and plastics, as well as external pollutants, such as emissions from cars and buildings that seep in through doors and windows. Although using an air purifier can have health benefits, especially if you have asthma or another respiratory condition, there are also disadvantages to air purifiers.
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