1 When positioned to represent the maximum distance above the bottom of a Carrier cooling coil, in laboratory testing, the UV lamp solution demonstrated reductions of molds penicilium citrinum and aspergillus niger on an aluminum surface in just 4 hours of 99.99% and 99.9% respectively.  Similarly in the laboratory, bacteria testing was completed on staphylococcus epidermidis and escherichia coli with reductions of 99.9999% and 99.9% respectively. These tests were conducted at an independent laboratory according to ASTM E3135-18 Standard Practice for Determining Antimicrobial Efficacy of Ultraviolet Germicidal Irradiation Against Microorganisms on Carriers with Simulated Soil.