
Adjusting the airflow on your Hygger HG041 Adjustable Air Pump is straightforward. To modify the air output: 1. Find the airflow control valve on the air pump. 2. To increase the air output, turn the control valve clockwise. 3. To decrease the airflow, turn the control valve counterclockwise. This allows you to easily customize the air pump's performance for your specific aquarium requirements.


