Homech Cool Mist Humidifier 4L Top Fill Quiet Ultrasonic Humidifier home office

L Low Noise Operation: Produces noise as low as 28dB, this humidifier is so quiet you won’t realize it’s running so you can sleep or work undisturbed. l Ultra-Fine Mist: Equipped with a 2.4MHz ultrasonic atomizer that produces ultra-fine mist that easily spreads throughout your space without getting your desk wet.

eBay