HDOLLY stands for the robot with disinfection mechanism to meet the new hygiene standards required in public areas. During the peak of the Covid-19 pandemic, HDOLLY, autonomous cleaning robots were presented that disinfect surfaces with the use of a powerful UV-C light and rid them of viruses and other pathogens. On HDOLLY, once the surface to be disinfected and cleaned is mapped, the operation for the responsible personnel is not much more complex than handling a smartphone. There are two models in HDOLLY family: HDOLLY I with UV-C light and HDOLLY II integrated with spray potassium-ion water for large area sterilization.