Biohit Proline filter tips are an ideal tool for any scientist in the molecular genetic studies. Biohit's filter tips provide an effective barrier between the pipettor and the sample allowing safe pipetting using air displacement technology. Reduces risk of contaminating the pipettor or samples Reduced costs compared to positive displacement technology The filter positioning, tip construction and purity strictly controlled Certified to be pyrogen free, as well as RNAse and DNAse free Sterilised using electron beam technology (disruption of DNA molecules in this manner ensures integrity of the sample to be amplified) 10 different sizes, which also fit most pipettors of other manufacturers T wo types of filters are offered: Safe-Cone Standard filter and Safe-Cone Plus filter It is recommended to use the Standard filter for general applications and the Plus filter for more demanding applications, such as cell culture, bacterial and virological work, and molecular biology. Standard filters can be used also for this type of work, but they need to be changed more frequently. When no filters are used, the pipettor can be contaminated already after 50 pipettings. To make filter removal safe and easy, forceps are packed with each Biohit pipettor; the mLINE mechanical pipettor features a unique filter ejection mechanism.