How to troubleshoot a lack of airflow in my Audi 80?

I have noticed that the air coming out of the vents in my Audi 80 is weak or non-existent. What could be causing this issue and how can I fix it?

The most common cause for a lack of airflow in an Audi 80 is a clogged cabin air filter. Check the filter and replace if necessary. Additionally, make sure there are no obstructions in the vent system.

Another possible cause for weak airflow could be a malfunctioning blower motor or a faulty switch. It is recommended to check these components and replace if needed.