Final answer:
Carpeting is not a common allergen, unlike pollen, dust, and mold.
Step-by-step explanation:
An example that is not a common allergen is carpeting. Pollen, dust, and mold are all common allergens that can trigger allergic reactions in individuals. However, carpeting itself is not a common allergen, although it can trap and accumulate allergens such as dust and pet dander.
Learn more about Common allergens