Well-maintained carpets can increase the overall look and quality of life inside any house. It acts as an amazing filter to your cooling and heating system. Carpets are designed to trap dust particles and pull dirt by gravity. However, as time passes, carpets can become saturated with excess dirt. That is when it’s filtering effect decreases drastically. Conversely, if you want to increase the longevity of carpets and boost its filtering abilities, you should clean them periodically. Martha Stewart has a great guide on cleaning the carpets here. However, it would be wiser to hire professional carpet cleaners, who can get rid of accumulated food particles, soils, pollen grains and many other contaminants.