Porvair Plc engages in the development, design, and manufacture of specialist filtration and separation equipment. It operates through the following segments: Aerospace and Industrial, Laboratory, and Metal Melt Quality. The Aerospace and Industrial segment serves the aviation, energy, and industrial markets. The Laboratory segment operates in the bioscience and environmental laboratory instrument and consumables market. The Metal Melt Quality segment includes the global aluminum and super-alloy markets, and the North America iron foundry market. The company was founded in 1982 and is headquartered in King's Lynn, the United Kingdom.