The most important factors when making a decision on carpeting material are level of traffic, level of moisture, risk of staining, and price. For example, a wool carpet would have medium durability, a vulnerability to moisture and staining, and a high price, whereas a nylon carpet would have high durability, a strong resistance to moisture and staining, and a medium price. A buyer with chemical sensitivities may still opt for the wool carpet if the areas of installation are appropriate.