This issue of The ACHR NEWS celebrates this year’s class of NEWSmakers, examines the effectiveness of UV-C in health care applications, gathers input from contractors regarding CO₂ refrigeration systems, describes the dangers of oil in an evaporator, pinpoints the role of separating grids in ice machine evaporators, reminisces about a contractor’s first CO call, offers research into HVAC purchasing decisions, explains when to let an employee go, and much more.