Cleaning Ability of Rental, Store Bought and Professional Machines
The first thing you need to consider is just how clean your carpet will get using a rental carpet cleaning machine or one sold for home use. For starters, while rental and machines designed for home use will soak your carpets deep down to the roots of your carpet fibers but only actually clean the surface of the carpet. As your carpets dry the dirt deeper down in your carpet will rise to the surface leaving your carpeting looking spotty and unclean in areas. Professional carpet cleaning machines are designed to clean deep down into the carpeting fibers getting all the dirt out clear down to the roots of the carpet fibers resulting in an overall cleaner carpet.
In addition, rental and store bought carpet cleaners often do not have very powerful extractors which means that your carpeting may remain damp for several hours or an entire day. If the weather is hot, then this gives mold and mildew a chance to grow in your carpeting. Professional carpet cleaners are designed to extract almost all the water from your carpeting, resulting in a faster drying time and less chance of mold and mildew growth.