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The carbon filter chemically attracts the unwanted elements and traps them in interior pores (absorption) or on its textured surface (adsorption)

The CDC reports that NRT users quit at notably higher rates than those going cold turkey [2]

Air purifiers can reduce exposure to secondhand smoke by filtering out particles and some chemicals

The filter is fine

They dont trap finer particles like smoke or chemical fumes, but they do enough for families simply looking to maintain a cleaner indoor environment

However, researchers note this finding was of very low certainty due to issues with imprecision and risk of bias