It’s no secret that carpets can be a breeding ground for dirt and allergens, but recent research has revealed that the fibers may also retain stubborn pollutants, such as those that come from tobacco smoke. In a new study conducted by researchers at the University of Southern Denmark, it was discovered that carpets act as a reservoir for tobacco-related pollutants, even after extensive cleaning. The study found that the pollutants can remain in carpets for up to five years, meaning it’s important for those who live in homes with smokers to be aware of the potential health risks.

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source: Phys.org