GAS PHASE FILTER IS DESIGNED TO REMOVE A WIDE RANGE OF ODORS AND COMMON INDOOR POLLUTANTS AT HIGH AIR FLOWS. THIS FILTER IS CONSTRUCTED OF HEAVY DUTY GALVANIZED STEEL AND PLASTIC WITH 3/4"" HONEYCOMB MEDIA PACKS THAT CAN BE FILLED WITH ACTIVATED CARBON POTASSIUM PERMANGANATE OR A 50/50 BLEND OF BOTH TO FIT ANY APPLICATION INCLUDING OFFICE BUILDINGS HOSPITALS AIRPORTS FOOD COURTS AND MANUFACTURING. FEATURES UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" IMPROVE INDOOR AIR QUALITY THROUGH EFFECTIVE REMOVAL OF CONTAMINANTS ODORS AND GASES 100 FILL FOR MAXIMUM SINGLE PASS EFFICIENCY AND LONGER SERVICE LIFE MAXIMUM OPERATING TEMPERATURE 150° F