Vet Disinfectants when diluted properly with water (according to the label on the bottle) are safe to use around animals. Chlorhexidine can be used as an antiseptic (clean cuts) as well as moush-wash for dogs (once again when diluted properly)
Here is the monthly cleaning process:
1. Remove snake and out into a holding container
2. Remove all cage decorations (including any water dishes), rinse with tap water then spray down with disinfectant. Let sit for 20 minutes. Then rinse again, and dry off.
3. While the cage decorations are sitting Remove all substrate from the cage, and spray the cage down with disinfectant. As with the cage decorations let the disinfectant work for 20 minutes, then wipe up with paper towels until dry.
4. Put new substrate into the cage, and put the cage decorations back in, and finally put the snake back in.