Pipette filter suction is a common laboratory tool that helps experimenters precisely control the movement and distribution of liquids. However, there are some issues to be aware of when using pipette heads.

1. Check whether the pipette head is clean before use. If the pipette heads are not properly cleaned and disinfected before use, impurities or bacteria may be introduced and the results of the experiment may be affected. Therefore, it is recommended that proper cleaning and disinfection should be carried out before use.

2, need to choose the correct size of the suction head. Different head sizes are suitable for different capacity ranges, and improper selection may lead to inaccurate suction or leakage. Therefore, when choosing to use the suction head, the appropriate suction head size should be selected according to the experimental requirements.