Pro 5 Ultra Exec CarbonAllerAir Exec Carbon Replacement Filter 5" Depth The Exec Carbon Replacement Filter is designed for general purpose air purification in AllerAir air purifiers, offering reliable protection against a wide range of airborne contaminants. Built with a 5 inch deep activated carbon bed weighing approximately 26 lbs Provides an impressive 3,375 acres of carbon media surface area for maximum adsorption capacity Purpose: General air filtration for homes,