The answer to 'my dryer vent cleaning is filthy' is that a dirty dryer vent is a common issue caused by lint buildup over time. This can lead to reduced airflow, longer drying times, and even fire hazards. Symptoms include decreased dryer efficiency, excess lint around the vent, and a visible blockage in the vent hose.
The best solution is to regularly clean the dryer vent, typically every 1-2 years. This can often be done as a DIY project, but for more extensive blockages or difficult-to-access vents, it's best to call a professional dryer vent cleaning service. They have the specialized tools and expertise to thoroughly clean the vent and ensure proper airflow.