Posted by Frederick,
Vacuuming and spot treating your carpet will only get it so clean. After a time, there will be a buildup of dirt that will make your carpet look old and dingy, and the only way to fix this is to wet clean your carpet. Carpet steam cleaners make this easy to do on your own. You can either rent or buy spray steam carpet cleaners to use for this purpose.
Home carpet cleaners that produce steam can be very effective in getting rid of built up dirt and grime. You can get either upright or cannister carpet steam cleaners, depending on your preferences. A wide variety of companies make these cleaners, so you should research your options carefully. One of the major brands is Bissell steam carpet cleaners.
Carpet steam cleaners are easy to use. All you need to do is vacuum your floor, then pretreat any spots. Add cleaning solution, if needed, to the cleaner, and then go over the floor. Many cleaners allow you to make a second pass with the spray off so that you can extract more water and lessen the drying time.