... disinfection, water treatment sterilization,water filter, curing system,ozone generator,air purification, food storage and photochemistry reaction.Services : ISO9001 , CE , ... life, ozone type & ozone free typeShape: Straight,U-shape,pen-shape,various special shapes.Model: GPH212T5L,GPH287T5L,GPH1148T5L,......Diameter(mm ... make suitable types according to your detailed requirements! UV air purifier