The answer to 'why is my vacuum filthy' is that a dirty vacuum is a common issue caused by a buildup of dirt, dust, and debris in the vacuum's components. This can lead to reduced suction power, poor cleaning performance, and an unpleasant smell.
Some of the most common causes of a dirty vacuum include not emptying the dust cup or bag regularly, not cleaning the filters, and not removing hair and debris from the brush roll. Over time, this grime can clog the vacuum's airflow, preventing it from working effectively.