Providing 360° surface application on all exposed surfaces, PHI Food Surface Sanitation Tunnel Treatment System delivers 99.9% surface microbial reduction. Tunnel design has bead blast finish, NEMA enclosures for electrical ballasts, lamp status indicators, optimized heat vent, and lamp and connection design that provides watertight seal. Photohydroionization® process does not affect taste or appearance of product, and tunnel can totally treat product surface without use of chemicals.