I was reading on fumigation on incubators it says do these. I always use 1 cup bleach. But I have never tryed to use them running tell know. I put alcohol in it. It needs other things. It says let them run. Open windows and doors. So we our doing it outside. It's just starting to fill up with moister on little gaint. I add another gallon of water on pro series. It says use formalin with potassium permanganate (condys crystals). It's a cleaning fumigating agent in farm equipment and incubators. It says do these at lest ones before a hatch. Trying to look up how to help them. It also included the heat light and natural light.