This is a SHARP humidifier, manufactured in 2020, using a heated vaporization method. There are no issues, but I am selling it because I no longer need it. There are some minor black scuff marks on the exterior, but this does not affect the operation of the product. The filter was replaced around October 2024 and has been used for approximately 3 months. If you are concerned, please purchase a new filter separately. I have discarded the original box, so I will pack the instruction manual (pictured) and the main unit in a different box for shipping. Please consider this a used item and understand its condition before purchasing. - Brand: SHARP - Color: White