An ultrasonic humidifier is a new purchase for me. It's possible that the flaw lies not with any one company or any one model, but with the technology as a whole. For what it's worth, I dumped the humidifier onto eBay's bargain basement. If the cost is too high, an air washer is an option to think about. It doesn't make you feel awful, but it does have its own issues, such the need to clean the drum and its removable components on a regular basis.
Dyson AM10 Humidifier: Efficient White/Silver Moisture Control
63 Review
BONECO W200 Air Washer: Humidifier and Purifier for Improved Air Quality
95 Review
Experience Clean and Fresh Air with Venta LW15 Original Airwasher in Black
172 Review
Boneco S200 Aromatisation Air Humidifier, white
35 Review
Split system Roda RS-AL09F / RU-AL09F
37 Review
Stay Cool With COMFYHOME 3-In-1 Portable Air Conditioner - Efficient Evaporative Air Cooler For Home And Office
11 Review
🥛 Electrolux EACS-12HG2/N3 Split System Air Conditioner with Milk Cooling Feature
12 Review
COMFYHOME 3 IN 1 Portable Evaporative Air Cooler - 60°Oscillation, 12H Timer & Remote, Windowless Room AC For Bedroom Home Office
11 Review