Since its inception, biotechnology has been preoccupied with virus filtration, the clearance of invasive and adventitious viruses from biopharmaceutical products. And now, far from waning, virus filtration is set to become even more important. Virus filtration, reports Markets and Markets, constitutes a global market that is growing 12% each year. At present, this market is valued at $1.8 billion. By 2020, it will reach $3.3 billion.