Outer body made of PCGI sheet duly powder coated and inner chamber and adjustable trays made of stainless steel. Gap between inner & outer wall is fitted with mineral wool. Confirming to cleanliness level of class with HEPA filter. Auto time control microprocessor with digital timer. Air is sucked with fresh air suction arrangement through a HEPA filter into the chamber & exhaust port is provided for excretion of unclean air. Available capacities 28ltrs., 45ltrs., 95ltrs., 125ltrs., 224ltrs., 252ltrs., 336ltrs.