Porvair plc is a specialist filtration, laboratory and environmental technology company. The Company's operating divisions include Aerospace & Industrial, Laboratory, and Metal Melt Quality. The Aerospace & Industrial division designs and manufactures a broad range of specialist filtration equipment for application in aerospace and industrial applications. It operates through its subsidiary, Porvair Filtration Group. Its Laboratory division designs and manufactures instruments and consumables for use in environmental and bioscience laboratories with a focus on water analysis instruments and sample preparation equipment. It operates through its subsidiaries, Seal Analytical, Rohasys, Porvair Sciences and JG Finneran. Its Metal Melt Quality division designs and manufactures porous ceramic filters for the filtration of molten metals. It operates through its subsidiary, Selee Corporation.