Israeli Aryeh Tench has invented an air humidifier with only one moving part. He says it’s cheaper, cleaner, and more efficient than any other. It works like a rotating toothbrush – the filaments break up water into tiny droplets. No heat, condensation, or bacteria. Prototypes are now being tested.
https://nocamels.com/2022/10/changing-the-air-we-breathe-with-a-toothbrush-inspired-device/