I take 5 drops of chlorine dioxide water purification drops in a glass of water every morning and every evening for maintenance. To protect myself from viral attacks that may be looming, additionally, I take 5 drops before I leave the house to go into town, and another 5 drops when I return home. I feel like this is a good plan to try to protect myself from the strange bacteria and viruses that I may be exposed to while out and about.