My son and are are arguing about the humidity in his BP tank!

I have no knowledge about snakes at all, But i do have some knowledge of lizards!
We have owned in the past an Iguana and i have right now an Anole.

I keep a heat light in my anole tank plus i mist it often to keep humidity in it.

The argument with my son is that i told him he need's to keep the humidity up all the time in his BP tank, He told me no that he should only keep it up during the shedding period.

Who is right him or i? should it have humidity all the time or only during the shedding period?

Thanks
~LadyBones~