UV Light has been used at hospitals to sanitize entire rooms. The CBLIGHT 60W UV Germicidal Lamp lets you try this technology indoors. It comes with app control, so you can operate it safely. It combines UVC light and ozone to kill 99.99% of dangerous germs and bacteria.
This is not a toy, so you will have to take precaution and leave the room while it is killing germs. Ventilation is also required to get rid of the ozone smell. You can find out more here.