The carpet in your home is a major component of your living space, so naturally you want it to maintain a pristine appearance for many years. You also want your carpet to be free of dust and odor for a more hygienic home. Additionally, your carpet represents a sizable monetary investment, so you want it to last for as long as possible. To keep your carpet looking and performing at its best, The Carpet and Rug Institute recommends having your carpet professionally deep-cleaned every 12 to 18 months. Bear in mind that this recommended frequency is a general guideline only and can vary based on your particular circumstances. For example, some homes may need a professional carpet cleaning every 6 to 12 months. It really depends on your lifestyle and your personal preferences. Below are some questions that may help you determine the proper cleaning frequency for your carpet: