Living in New England creates a battle with humidity - bone dry in the winter, humid in July/August. Both bad for guitars. Does anyone have a good recommendation that doesn’t entail “ultrasonic” cool mist which leaves mineral deposits all over the place (which get sucked into the fans of my rack gear etc). There are the simple warm mist thingies but they gunk up quickly. How do you guys deal with it? No central air in my house.