The answer to 'why is my steam cleaner dusty' is that a dusty steam cleaner is often caused by a clogged or dirty filter. Over time, the filter can become blocked with dust, debris, and mineral buildup, preventing proper airflow and causing dust to be expelled from the machine.
Other common causes include using the wrong cleaning solution, not regularly cleaning and maintaining the machine, or a worn-out filter. Symptoms of a dusty steam cleaner include decreased suction power, visible dust being expelled, and a less effective cleaning performance.