How to purify the incubator for culturing mould?

The incubator used to cultivate mold, but now it has to cultivate another kind of mold. So, how to purify the incubator for cultivating mold?
common method: Uv light irradiation, and wipe with alcohol
update method: 30 ml formalin + 15 g potassium permanganate + 15 ml water per square meter space (height not more than 3 meters)
The potassium permanganate solid is first wrapped with permeable paper (such as newspaper) and put into an old beaker. Then the formalin + water solution is poured into it. The person leaves immediately. The incubator is sealed for 24 hours and then ventilated and blown away. At this time, there is no need to turn on the UV light at the same time.
the details:
usage: 18ML/M3
humidity: 70-90％
The boiling point of formaldehyde: -19.5celsius degrees
In the use of the incubator, do not use corrosive solution to wipe the surface. Dry cloth or alcohol can be used to clean the incubator. If necessary, use the above method to purify mold.

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