Carpeting that has been in place for twenty years can indeed pose potential health and indoor air quality concerns if it has not been meticulously maintained and deep-cleaned over its lifetime. Over two decades, carpet fibers accumulate massive quantities of deep-set dust mites, pet dander, embedded pollens, trapped allergens, bacteria, and old moisture residues that standard household vacuums cannot extract. If the carpet shows signs of chronic dampness, mold growth, frayed backing, or persistent odors, replacing it is highly recommended to protect indoor air hygiene and respiratory health.
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