I have had the most annoying time with my humidity since lockdown. Today is day 19. For the last 18 days, the humidity stayed at 50% with NO water added AT ALL. 50% was the lowest I could get it. Yesterday when I went into lockdown, I filled only one of the 2 channels in my octagon 20. This, however, only brought it up to 55%. I filled the other one and added some damp towel and it is now hovering just around 60%. Is this where it should stay? If it should go higher, how do I add water if I am not supposed to open it at all? Thank you for your input!