@Jilly raised some good points - I didn't want the ultrasonic b/c if the dust issue, and there are ways to increase humidity w/ out the vaporizer/humidifier such as using a can of water on the wood stove, showering, and I guess even boiling water for pasta. We don't always use the wood stove, and rely on the wall heaters to bring up the temperature upon arrival. So looking for something help with increasing humidity rather quickly. I was reading that even leaving a small amount of hot water in the bathtub overnight would increase humidity. Not sure if I want to do that in a hotel, but perhaps in my own condo. I'll try it since we have a tub/shower in the ensuite master bath.
@nopoleskier there seem to be several small travel humidifiers that would work in a hotel situation -The Best Personal Humidifier from Hamacher; BONECO Travel Cool Mist Ultrasonic Humidifier - 7146; HoMedics® Water Bottle Personal Travel Humidifier; Crane Ultrasonic Cool Mist Travel Humidifier etc.
@MI-skier yes its that cheap Vick's steam model -
https://vicks.com/en-us/shop-products/vaporizers/v105sg-warm-steam-vaporizer. Tried and true, but sloshing water and no auto shut off make me want to upgrade for my current situation. Also I'm looking to use it in approximately 550 sq feet of space so probably need something bigger.
@CarverJill here is a good explanation -
https://www.allergybuyersclub.com/learning/humidifiers-cool-mist-warm-review.html
I'm leaning towards the warm air / Vaporizer because I don't want to replace filters, don't wan't white dust, and like the idea that the water is "boiled" to remove bacteria etc.
In my research I did find that having the humidified air helps to acclimate to altitude = better sleep. Im all for that. I'm going from sea level with ocean humidity to mountain dry air @ 9K altitude.
So I'm leaning towards this model.....
https://www.boneco.us/en-us/product-info/humidifiers/s250#overview seems to have nice features with removable tank and a filter that absorbs minerals. Cleaning mode. I guess one negative is can't "direct" the out put. Still doing some research before I buy. I do have the cheap Vicks model here at home that I can take up to the condo and use temporarily.