Room is 40% humidity, how much should I mist ?

I live in a pretty humid environment, but with the heater on in the winter the humidity stays around 35-40% in the room, the tubs have a fairly substantial amount of holes. I've been giving them 3-4 squeezes twice daily, is this too much or too little?

If your humidity stays within that range once to none should be fine unless you have some in shed.

The snakes in my tubs get misted once a day. Although some days I don't mist them. During a shed I will mist twice.

Okay, I'll mist a bit less. I don't want to wet them down too much. Thanks.