0.1 µm vs 0.2 µm Sterile Filtration – Which One Should You Use for Cell Culture & Diagnostics?
When sourcing biological materials like fetal bovine serum (FBS) or human serum for critical applications, one specification often appears without much explanation: filtration pore size. You'll see products labeled as "0.1 µm filtered" or "0.2 µm triple-filtered," but what do these numbers actually mean for your research or diagnostic work?