In some parts of the country, indoor grows REQUIRE dehumidifiers to be successful.
Humboldt County is one such place. I've seen many rooms there, and all have dehumidifiers.
They come in various sizes, so get what is appropriate. If you use one for drying, your buds will dry far more quickly, but be aware that drying too quickly will inhibit curing. Better to remove some moisure, and then let the buds hang for a few days(to allow the breakdown of chlorophyll) before finishing the process.
A lot of air movement(fans) will help avoid moisture accumulation, as well.