Restricted direct lung — a middle ground between MTL and open DL.
RDL is a common label on modern pods and AIOs. It usually means more airflow than MTL but less than a wide-bore DL tank.
WINDBAR tools for this term
Related terms
RDL questions
What does RDL mean in vaping?
Restricted direct lung — a middle ground between MTL and open DL. RDL is a common label on modern pods and AIOs. It usually means more airflow than MTL but less than a wide-bore DL tank.
Where can I use RDL on WINDBAR?
Open the linked WINDBAR calculator on this page, or browse the full glossary index for related terms. Adults 21+ only.
Educational glossary for adults 21+ only. Not medical advice. Follow manufacturer instructions and local laws.