In the daily liquid transfer operations in the laboratory, the pipette is regarded as the core tool for precise experiments. And the seemingly insignificant filter cartridge tip is actually the secret weapon that protects the pipette and prolongs its lifespan. Many times, sample backflow, aerosol contamination, and reagent corrosion will directly invade the interior of the pipette, causing damage to the mechanism, a decline in accuracy, and high maintenance costs. However, the hydrophobic and breathable filter element at the top of the filter cartridge tip acts like a sturdy protective barrier for the pipette, blocking liquids, fog, and impurities from entering the pipette barrel at the first moment, thus preventing the instrument from being contaminated and damaged at its root. 

The protective principle of the filter cartridge suction head is simple yet highly effective. During the pipetting process, if there are errors such as excessive liquid intake, sample foaming, or negative pressure suction, the filter cartridge will immediately stop the upward flow of the liquid. At the same time, it effectively blocks contaminants such as aerosols, viral nucleic acids, proteins, etc. produced during the experiment. This not only prevents cross-contamination between samples and affects the experimental results, but also avoids damaging the internal components of the pipette with corrosive reagents, volatile solvents, or viscous samples. It enables the precision pipette to avoid the troubles of disassembly, cleaning, and maintenance, significantly reducing the instrument's failure rate and replacement cost.