The answer to 'why is my vacuum dirty' is that there are several common causes, including a full dust cup or bag, clogged filters, and built-up debris in the vacuum's interior. A dirty vacuum can result in reduced suction power, poor cleaning performance, and even potential damage to the machine.
Some of the most common symptoms of a dirty vacuum include visible dirt and debris in the dust cup or bag, a musty or unpleasant odor, and reduced suction power that makes it harder to pick up dirt and debris from your floors. In many cases, these issues can be resolved through simple DIY maintenance and cleaning, but more complex problems may require professional repair.