The electricity for the heating pan needs to be controlled from outside the building and the building must be sealed for 24 hours. Do not enter until it has been thoroughly ventilated. Formaldehyde gas is one of the few agents effective against coccidiosis and cryptosporidiosis. Hard water does not interfere with activity but surfaces soiled with organic material consumes the chlorine rendering it ineffective. It can be corrosive to some surfaces.
Decomposition occurs rapidly in warm temperatures.
It should never be used in conjunction with formaldehyde or other acids. Surfaces should be thoroughly cleaned of organic material before using chlorine. They are just as efficacious as other disinfectants for sanitation of non-porous hard surfaces and a highly desirable feature is the cleaning ability of the detergent like activity. While they have good bactericidal, viricidal and fungicidal activity, they are not sporicidal. Residual chemical has little toxicity for animals.