Get filtered tips which must be used in all contamination-sensitive molecular biology applications and it helps reduce the possibility of aerosol formation and shields which prevents liquids from insert to the filtered tip surface but sliding residue-free over the inside surface of the tip.
https://drive.google.com/file/d/1SMg0jYr2DrwJDFgkNVHc3Syv841Kqh-9/view?usp=sharing