Yes, it's very important to be able to control the temp and humidity of the room.
Personally, I do my doming in a fairly large "walk-in" cupboard that I kitted out as my doming room lol fairly small space but I don't need much and makes it so much easier to get my humidity levels correct fairly quickly. I use a dehumidifier to get my humidity levels under 40 and my temp sits around 25 at this level. My domed products also sit in a heated propagator.
After doming, I keep the dehumidifier running for a few hours but then just shut it off and keep the heated propagator running. Everything is cured to touch within 4-5 hours but still tacky, so I recommend leaving to cure for 24hrs before sending out but this can be done at room temp.