HEMCO UniFlow Trace Metal Fume Hoods are specifically designed for applications where for accurate testing results, it is imperative that the fume hood be constructed of non-metallic materials. Ideal for water treatment, marine and soil sciences, environmental toxic analysis, and toxicology. The fume hood features a welded one piece seamless polypropylene interior fume chamber and baffle, the exterior is constructed of composite polyresin, sashes are horizontal sliding in PVC track of either tempered glass or polycarbonate. The work surface is welded integral to the fume chamber and the support cabinet if required is of polypropylene.